Cannabis and Osteoporosis: What Research Shows (and Doesn’t)
No study has yet tested medical cannabis in people with osteoporosis. In animals and cells the results are mixed, and some are plainly negative: in a 2026 rat study, inhaled THC added to bone loss [1] – a finding about breathing THC in that does not carry over to edibles, oils or CBD. Whatever the form, talk it through with a physician first: your liver, your other medicines and drowsiness that can end in a fall all apply.
Based on peer-reviewed research published from 2005 to 2026: reviews, laboratory and animal studies, and a few studies in people
When osteoporosis becomes part of every day
The diagnosis itself often arrives quietly, as a number on a bone density report. What changes life is everything that follows it: the first broken bone, the caution on every staircase, the pill bottle that will sit on the counter for years.
Pain after a fracture
A spine fracture can happen while lifting a bag of groceries or simply bending to tie a shoe. The back pain that follows can be sharp for weeks, and for some people a dull ache stays long after the bone has healed. Sitting through a movie or a car ride becomes something to plan around.
Afraid of the next fall
Once you know your bones are fragile, an icy driveway or a dark hallway looks different. Many people start moving less to stay safe, and moving less weakens the muscles and balance that prevent falls in the first place.
Shorter nights
Pain that flares when you turn over, a stiff back in the morning, a trip to the bathroom in the dark that suddenly feels risky. Broken sleep wears down patience and energy for everything else.
Years of pills
Bone medicines work best when they are taken for years, and some come with rules that are hard to live with: an empty stomach, a full glass of water, sitting upright for a while afterward. It is natural to wonder whether there is a gentler option, and to worry about side effects you have read about.
The question people hesitate to ask
Many adults with osteoporosis are curious about medical cannabis (for pain, for sleep, for the worry) and do not raise it with their doctor because they expect a frown. It is a fair question. It deserves a straight answer about what has and has not been studied.
What is osteoporosis?
Osteoporosis is a bone disease that develops when bone mineral density and bone mass fall, or when the inner structure of bone changes, so bones become weaker and break more easily [2]. The name itself means “porous bone”: under a microscope healthy bone looks like a honeycomb, and in osteoporosis the holes in that honeycomb are much larger [3]. The fractures it leads to happen most often in the hip, the spine and the wrist [2].
Bone is living tissue that is broken down and rebuilt all the time. Osteoporosis develops when removal outpaces rebuilding. The usual reasons are age, since bone loss speeds up and new bone forms more slowly as we get older, and the drop in estrogen after menopause [2]. Women are affected more often, and men are at risk too, especially after age 70 [2]. Some medicines add to the risk: glucocorticoid steroids such as prednisone, some cancer treatments and some antiseizure medicines. So do a diet low in calcium and vitamin D, little physical activity, heavy drinking, smoking and a slender build [2].
Osteopenia
What it is: bone density lower than in a healthy young adult, but not low enough to be called osteoporosis.
How it is found: a bone density scan (DXA) with a T-score between −1 and −2.5 [4].
What it means: a warning sign, not a disease of its own. Exercise, calcium, vitamin D and sometimes medicine keep it from going further.
Osteoporosis
What it is: bone weakened enough that it breaks from a fall from standing height or less.
How it is found: a T-score of −2.5 or lower on DXA [4], or a fracture of the spine or hip from minor trauma.
What it means: a higher chance of breaking a bone. Treatment aims to lower that chance.
Osteoporosis, osteopenia or osteoarthritis?
The three names sound alike and are often confused. Osteoarthritis is a different disease: it wears down the cartilage of joints, while osteoporosis thins the bone itself. A person can have both, and one does not cause the other.
What do you want to compare?
Pick one aspect to see it side by side across the three conditions.
| Condition | What happens | Pain | How it is found | Treatment |
|---|---|---|---|---|
| Osteopenia | Bone density is lower than average, the structure still holds. | None. Low density is not felt. | DXA scan, T-score between −1 and −2.5 [4]. | Exercise, calcium, vitamin D; medicine if fracture risk is high. |
| Osteoporosis | Bone becomes porous and breaks from minor falls. | Comes from fractures, not from thinning bone. | DXA scan, T-score −2.5 or lower, or a low-trauma fracture [4]. | Bone medicines, calcium, vitamin D, exercise, fall prevention. |
| Osteoarthritis | Joint cartilage wears down; bone under it can even thicken. | Joint pain and stiffness, worse with use. | Symptoms, an exam and X-rays of the joint. | Movement, weight control, pain relief, sometimes joint surgery. |
Quick answers
Does osteoporosis run in families?
It can. If one of your parents had osteoporosis or broke a hip, your own risk of osteoporosis and fractures may be higher [2]. Family history is one of the questions in the FRAX fracture risk calculator for exactly that reason [5]. Genetic testing is not part of routine care: a bone density scan tells you more about your own bones than a gene test does.
Is osteoporosis an autoimmune disease?
No. Osteoporosis is a long-lasting (chronic) disorder of the musculoskeletal system, caused by an imbalance between building and removing bone, not by the immune system attacking the body. Autoimmune diseases can raise the risk indirectly, though: rheumatoid arthritis and lupus are often treated with glucocorticoid steroids, and those medicines speed up bone loss [2].
Osteoporosis and GLP-1 drugs such as Ozempic
Weight-loss and diabetes medicines of the GLP-1 class, such as semaglutide (Ozempic, Wegovy), raise a fair question about bone, since losing weight can mean losing some bone too. Early data are reassuring: in a large 2026 study of adults with type 2 diabetes, semaglutide was linked to fewer fractures than other weight-loss medicines, and the authors call for prospective studies to confirm it [6]. If you have osteoporosis and start a GLP-1 medicine, ask whether a follow-up bone density scan makes sense.
How is it diagnosed: DXA, T-score, FRAX and codes
DXA scan. Dual-energy X-ray absorptiometry measures bone density at the hip and spine. You lie still on a padded table for a few minutes, nothing is injected, and the X-ray dose is low.
T-score. Your result compared with a healthy young adult. A T-score of −2.5 or lower means osteoporosis; between −1 and −2.5 means osteopenia, the World Health Organization definitions [4].
FRAX. A free online calculator that estimates your 10-year chance of a hip fracture or another major osteoporotic fracture from clinical risk factors (age, sex, weight, prior fractures, a parent’s hip fracture, steroid use, smoking, alcohol) and, if you have it, the density of the hip [5]. Doctors use it to decide who needs medicine, not only who has a low T-score.
Blood tests. Calcium, vitamin D, kidney and thyroid tests, and often alkaline phosphatase, are checked to rule out other causes of bone loss. Osteoporosis by itself usually leaves alkaline phosphatase normal; a high value points the doctor to a healing fracture or another bone condition.
Diagnosis codes. In the ICD-10-CM code set used in the United States, osteoporosis is coded M81 when there is no current fracture and M80 when it comes with a current fracture caused by the disease [7]. You will see these on referrals and insurance paperwork.
Does osteoporosis cause pain?
Thinning bone itself does not hurt. Osteoporosis is often called a silent disease because you cannot feel your bones weakening, and for many people a broken bone is the first sign [3]. The pain comes from fractures. A broken vertebra in the spine can cause severe back pain, loss of height and a stooped or hunched posture [2] – and some spine fractures happen with so little force that people take them for a pulled muscle.
So the honest answer to “does osteoporosis cause back pain or hip pain?” is: not on its own, but the fractures it leads to do. Fatigue and weight loss are not symptoms of osteoporosis either; if you have them, they deserve their own check-up.
Where does it hurt?
Pick a place. This describes common causes; it does not diagnose.
Choose a place to see what it can mean.
Back. Sudden pain in the middle or lower back after bending, lifting or even a cough is the classic sign of a spine (compression) fracture. The sharp phase usually eases over weeks as the bone heals; some people keep a lasting ache from the changed shape of the spine. Call a doctor the same day if back pain comes on suddenly and strongly, or comes with numbness, weakness in the legs or trouble passing urine.
Hips & groin. Pain in the groin or outer hip after a fall, especially if you cannot stand or put weight on the leg, or the leg looks shorter or turned out, can be a hip fracture and needs emergency care. Hip pain without a fall is more often arthritis or a tendon problem, still worth a visit.
Wrist. A wrist broken by catching yourself in a fall from standing height is often the first fracture osteoporosis causes. Swelling, a bent look or pain when you move it means an X-ray today. Afterward, ask whether you should have a bone density scan.
Ribs. Rib fractures can follow a minor bump or a hard cough. They hurt with breathing and turning and usually settle over several weeks. Shortness of breath, coughing blood or pain after a real blow to the chest are reasons to be seen right away.
Posture & height. Losing height, or an upper back that curves forward (sometimes called a dowager’s hump), can mean several spine fractures have happened, even without much pain [2][3]. It is not an emergency, but it is a reason to book a visit and ask about a spine X-ray and treatment.
Tired & achy. Osteoporosis does not cause fatigue or a general all-over ache. Those are worth checking for other causes: low vitamin D, thyroid problems, anemia, poor sleep or depression. Your doctor can sort them out with simple blood tests.
No pain. That is how osteoporosis usually is until a bone breaks [3]. Absence of pain does not mean the bones are fine, so keep up with treatment and fall prevention and repeat your bone density scan when your doctor suggests.
Could medical cannabis fit your situation with osteoporosis?
A few questions about your bones, your medicines and your state. You get a plain summary of what your answers mean and what to raise with a physician.
13 questions · about a minute · your answers stay in this browser
What treatments work for osteoporosis?
Proven osteoporosis care rests on three things: medicine for people whose fracture risk is high, enough calcium and vitamin D, and exercise plus a home that makes falls less likely. Medical cannabis is not among them, and nothing on this page is a reason to stop or delay a treatment your doctor prescribed.
Bisphosphonates are the usual first choice, taken by mouth for up to about five years or by vein for about three. Denosumab is another medicine that slows bone removal. For people at very high risk, or after a spine fracture, bone-building medicines such as teriparatide, abaloparatide and romosozumab come into play [8].
Which part of treatment do you want to see?
Bisphosphonates
Alendronate, risedronate, ibandronate as pills; zoledronic acid as a once-a-year infusion. They slow the cells that remove bone and are the usual first-line treatment [8].
Denosumab
An injection every six months that blocks bone removal. It works only while you keep taking it, so stopping needs a plan with your doctor rather than simply skipping a dose.
Bone-building medicines
Teriparatide, abaloparatide and romosozumab (Evenity) help form new bone. They are given by injection for a limited time to people at very high risk, then followed by another medicine [8].
Estrogen and SERMs
Hormone therapy after menopause, and estrogen-like medicines such as raloxifene or bazedoxifene, protect bone in some women. They suit some patients and not others; the choice depends on your other risks.
Calcium and vitamin D
The best-known supplements for bone. Most guidelines prefer calcium from food first and add a supplement to fill the gap; vitamin D helps your body absorb it [8]. More is not better; ask what dose fits you.
A bone-friendly plate
Dairy or fortified alternatives, canned fish with bones, leafy greens, beans and enough protein. Limiting alcohol and not smoking matter as much as any single food [2].
Exercise that loads bone
Walking, stair climbing, resistance training with bands or weights, plus balance work such as tai chi. A physical therapist can show safe moves; avoid deep forward bends and twisting under load.
A home that prevents falls
Night lights on the way to the bathroom, no loose rugs, grab bars, non-slip shoes and an eye exam. Most fractures in osteoporosis start with a fall, so this is treatment too.
Can osteoporosis be reversed?
Partly, and it depends what you mean. Treatment can raise bone density measurably and lowers the chance of a fracture. Some people move from the osteoporosis range back into the osteopenia range on their scans, especially on bone-building medicines. The tendency does not go away, though: osteoporosis is a long-term condition, and bone density tends to fall again when treatment stops without a plan. Diet and exercise on their own rarely reverse it, but they make every medicine work on stronger ground.
Guidelines in different countries agree on the core. The 2023 Osteoporosis Canada guideline says treatment should follow a person’s fracture risk, measured with a validated tool, and that exercise, nutrition and medicine should be tailored to each patient [9]. The UK guideline from the National Osteoporosis Guideline Group covers the same ground for women after menopause and men aged 50 and older [10]. In the United States, American Family Physician advises weight-bearing exercise, quitting smoking, moderate alcohol, and calcium with vitamin D for everyone with osteoporosis, with bisphosphonates as first-line medicine [8].
What can osteoporosis lead to?
The main complication of osteoporosis is a broken bone, and two kinds of fracture shape what comes after: the hip and the spine. Both are reasons to take treatment and fall prevention seriously long before anything breaks.
Hip fracture
What happens: usually a sideways fall. It almost always needs surgery and weeks of rehabilitation, and many people need long-term care afterward [3].
What helps recovery: surgery soon after the fall, getting up and walking early with help, physical therapy, and starting bone treatment so a second fracture is less likely.
Spine fractures
What happens: one or more vertebrae collapse. This can bring severe back pain, loss of height and a hunched posture [2], sometimes without any fall.
What helps recovery: pain relief that lets you keep moving, a short period of rest at most, back-strengthening exercise with a therapist, and bone medicine to protect the other vertebrae.
Can osteoporosis shorten your life?
Osteoporosis itself is not fatal, but the fractures it causes can be. According to the Bone Health and Osteoporosis Foundation, twenty percent of seniors who break a hip die within one year, from complications of the fracture or of the surgery to repair it [3]. That is the strongest reason to treat osteoporosis before a hip breaks, and to make falls less likely at home.
Osteoporosis and cancer
The two meet in a few ways. Some cancer medicines speed up bone loss [2] – for example hormone-blocking treatment for breast or prostate cancer, steroids, and chemotherapy that brings on early menopause – so many people with cancer are offered a bone density scan. Cancer that has spread to bone can also cause bone pain and fractures that look like osteoporosis but are treated differently. If you live with both, our page on medical cannabis and cancer covers the cancer side.
Does osteoporosis affect your teeth?
The jaw is bone too, and bone loss there can make teeth looser over time, so dental checkups matter more with osteoporosis. One thing to tell your dentist: you take a bone medicine. Rarely, bisphosphonates and denosumab are linked to slow healing of the jawbone after a tooth extraction or implant, and the dentist will plan around it. Do not stop the medicine on your own before dental work.
How long does osteoporosis take to progress?
Usually years, not months. Bone loss is fastest in the first years after menopause and continues slowly with age [2]. That is why doctors repeat a bone density scan every few years rather than every few months, and why treatment is judged over years. A fracture can still happen at any point, which is why fall prevention never waits for the next scan.
Why researchers look at cannabinoids for bone
Your body makes its own cannabis-like signaling molecules, and it has receptors for them, together called the endocannabinoid system. The two best-known receptors are CB1 and CB2. THC from the cannabis plant acts on both; CBD acts more indirectly, through several receptors at once. Bone cells carry these receptors, which is why bone is part of cannabinoid research at all.
Cells that build bone (osteoblasts)
What they do: lay down new bone and fill in what has been removed.
Why it matters here: in lab and animal work, switching certain cannabinoid signals on or off changes how actively these cells work [11].
Cells that remove bone (osteoclasts)
What they do: dissolve old bone so it can be renewed. In osteoporosis they outpace the builders.
Why it matters here: most bone medicines slow these cells, and several cannabinoid targets have been tested for the same effect in mice and cells [12].
Which part of the system?
Pick one to see what has been found. Everything below comes from cells or animals.
Choose a part of the system to see what has been found.
CB2 receptor. The receptor most studied in bone. Its signaling helps decide how bone-building cells mature: in a 2026 zebrafish study, the plastics chemical bisphenol A bound directly to CB2 and held back bone formation [13]. That study was about a pollutant, not about cannabis, but it shows how sensitive bone growth is to this receptor. A 2026 scoping review describes CBD working partly through such receptors to slow bone removal and support bone building in lab and animal models [11].
CB1 receptor. The main target of THC, and present in bone as well as the brain. In older monkeys with osteoporosis, scans found CB1 levels in the lower spine that differed from those in young monkeys [14]. In rats without ovaries, a model of menopause, researchers suggest that THC acting on CB1 and CB2 tipped bone remodeling toward removal [1]. In human bone-building cells, the pollutant PFOA changed CB1 levels along with damaging the cells [15].
FAAH and MAGL enzymes. These enzymes break down the body’s own cannabinoids. Blocking FAAH with an experimental drug held back the formation of bone-removing cells and lessened bone loss in mice without ovaries [12]. This is a drug that raises the body’s own cannabinoids, not cannabis, and it has not been tested for bone in people.
GPR55. Another receptor that responds to some cannabinoids. It has been studied mostly in lab dishes with bone-removing cells, and what it means for living bone is still unclear. There is no animal or human evidence on bone that a patient could act on.
Can medical cannabis help osteoporosis?
Not as far as anyone can show today. Here is the answer layer by layer. In people, no study has tested cannabis or CBD as a treatment for osteoporosis, so there is no evidence it strengthens bone or prevents fractures. In animals and cells, results point in different directions: some lab models suggest CBD slows bone removal, while a long rat study found it did not repair bone [16]. For inhaled THC, the only animal study found more bone loss, not less [1] – a result about breathing THC in, which says nothing either way about edibles, oils or CBD. For any form, the questions that matter for you are the same: your liver, your other medicines, and drowsiness that makes a fall more likely.
Some people with osteoporosis still ask about cannabis for something else: pain after a fracture, sleep, or anxiety. Those are separate questions from bone strength, and a physician can weigh them in your situation.
In animals
What was given: CBD by mouth for 12 weeks to rats without ovaries [16]; THC inhaled daily for 56 days in the same kind of rats [1].
What changed: CBD did not restore the lost bone structure. Inhaled THC lowered bone density and thinned the inner struts of bone.
In people
What was given: nothing yet. No clinical trial has tested cannabis or CBD for osteoporosis.
What changed: unknown. Whether any form affects bone density or fractures in people has not been measured.
Animal results do not transfer to people. Rats without ovaries are a laboratory model of bone loss after menopause; human bone, doses and products differ.
How the rat studies were done
CBD study. Fully grown female rats had their ovaries removed to mimic menopause. In the study, the rats received 5 mg of CBD per kg of body weight a day for 12 weeks, in groups of seven. Bone volume in the shinbone fell by about 35% after ovary removal, and CBD did not bring it back; it also did not change the activity of genes in bone-building or bone-removing cells [16].
Inhaled THC study. Rats without ovaries inhaled THC at about 0.76 mg per kg a day for 56 days, in groups of five. Compared with rats breathing air, they had 2% lower bone mineral density, 14% thinner struts inside the bone and 20% more space inside the bone shaft [1].
These amounts describe what the animals received in the studies. They are not doses for people and cannot be converted into one.
What the research shows, from strongest to weakest
Medical evidence has levels. A trial in people is the strongest; studies that observe people come next; animal and cell studies show possible mechanisms; reviews sum up what others found. For cannabis and osteoporosis, the top step of that ladder is still empty.
| Level | What exists for osteoporosis | What it can tell you |
|---|---|---|
| Trials in people | None yet No trial has given cannabis, THC or CBD to people with osteoporosis. | Whether it helps or harms bone in people. This answer does not exist yet. |
| Observational studies in people | A few studies of bone and the cannabinoid system in people, such as genes for the CB2 receptor. None tests cannabis as a treatment. | Links worth studying, never cause and effect. |
| Animal studies | Rats, mice, monkeys and zebrafish. Results split: a CBD study and an inhaled THC study were negative [16][1]; an enzyme blocker lessened bone loss in mice [12]. | What might happen in a living body; often fails to repeat in people. |
| Cell and lab studies | Bone cells in dishes exposed to cannabinoids, their receptors and pollutants that act on the same receptors [15]. | How a mechanism could work. Not whether a product helps. |
| Reviews | Summaries of lab and animal work, such as a 2026 scoping review of CBD and bone [11]. | Where the field stands; only as strong as the studies inside. |
Key studies, side by side
Negative results stand here on equal terms with positive ones. Filter by what each study found.
| Study | Model | What was given | Result |
|---|---|---|---|
| Long-term CBD in rats after ovary removal, 2026 [16] | Rats | CBD by mouth for 12 weeks | Negative Did not restore lost bone structure. |
| Inhaled THC after osteoporosis, 2026 [1] | Rats | Inhaled THC daily for 56 days | Negative Lower bone density and thinner bone struts. |
| Scoping review of CBD and bone health, 2026 [11] | Review of 24 studies [11] | CBD in cell and animal studies | Mixed Benefit in some studies, mixed results in as many. |
| FAAH enzyme blocker after ovary removal, 2023 [12] | Mice | An experimental FAAH inhibitor for 8 weeks | Positive Less bone loss in mice. Not cannabis. |
| CB1 receptor scans in older monkeys, 2023 [14] | Monkeys | No treatment; imaging only | Mechanism only CB1 levels in the spine differed with osteoporosis. |
| Bisphenol A and the CB2 receptor, 2026 [13] | Zebrafish | Plastics chemicals, not cannabis | Mechanism only They act through CB2 and slow bone formation. |
| PFOA and bone-building cells, 2026 [15] | Cells | A pollutant, not cannabis | Mechanism only Damaged the cells and changed CB1 levels. |
| Bazedoxifene and its targets, 2026 [17] | Review | An osteoporosis medicine, not cannabis | Mechanism only Also acts on cannabinoid receptors. |
What kinds of studies is this evidence built on?
How to read it: each bar is one type of study, its length is how many studies of that type look at cannabinoids and bone, and the number is printed at the end. Dark bars are studies in people; light bars are reviews, lab and animal work.
Show as a table
| Type of study | Studies in people? | Number of studies |
|---|---|---|
| Reviews | No | 16 |
| Cell and lab studies | No | 15 |
| Animal studies | No | 11 |
| Cohort studies | Yes, observational | 3 |
| Case-control studies | Yes, observational | 1 |
Which cannabinoids have been studied for bone?
“Cannabis” covers very different things: the THC and CBD in products sold at dispensaries, prescription medicines made from cannabinoids, and experimental compounds that exist only in laboratories. They do not share results, so it helps to see them apart.
| Substance | What was studied | Model | What came out |
|---|---|---|---|
| Dispensary products | |||
| THC | Daily inhalation after ovary removal | Rats | More bone loss than in rats breathing air [1]. |
| CBD | Daily by mouth for 12 weeks; many lab and animal studies | Rats; cells and animals in a review | No repair of bone in rats [16]; benefit or mixed results across lab and animal work [11]. |
| Prescription medicines | |||
| Epidiolex (cannabidiol) | Approved for certain seizure disorders | None for bone | Not studied as an osteoporosis treatment. |
| Dronabinol, nabilone | Approved for nausea and appetite loss in specific illnesses | None for bone | Not studied as an osteoporosis treatment. |
| Lab-only compounds | |||
| HU-308, JWH-133 | Synthetic compounds that switch on CB2 | Mice and cells | Tested as research tools; not medicines and not sold. |
| FAAH and MAGL inhibitors | Drugs that slow the breakdown of the body’s own cannabinoids | Mice and cells | A FAAH inhibitor lessened bone loss in mice [12]. |
| β-caryophyllene | A terpene found in cannabis, pepper and cloves | Cells | Lab results only; no animal or human data on bone. |
Does it matter how cannabis is used?
Yes. Cannabis is not only smoked, and the one bone-harm finding in animals comes from inhaled THC [1]. Edibles, capsules, oils under the tongue, creams and patches never pass through the lungs, so that particular result does not apply to them. Other questions apply to every form, and they matter more with fragile bones.
How is it used, or how would it be?
Pick a form to see what it avoids and what remains. This describes, it does not recommend.
Choose a form to see it above the points that are true of every form.
Smoking: joints, blunts, pipes, bongs
What we know: the only animal study of inhaled THC after ovary removal found lower bone density and thinner bone struts [1], and its authors advise against this use in people with osteoporosis or a high fracture risk [1]. Tobacco smoking is a known risk factor for bone loss [2].
What remains: smoke in the lungs, plus everything in the card below.
Vaping and dabbing
What it avoids: burning plant material, so there is no smoke.
What remains: a hot aerosol through the same airways, and THC is still inhaled: the very route of the rat study [1]. Concentrates for dabbing can carry much more THC per use.
Edibles, drinks and capsules
What it avoids: the lungs, and the inhaled route of the animal study.
What remains: the effect starts late and lasts long, so a second portion “because nothing happened” is a common cause of taking too much. Everything swallowed passes through the liver first.
Tinctures, oils and sprays under the tongue
What it avoids: the lungs, and the inhaled route of the animal study.
What remains: part of the dose is swallowed and goes through the liver; drowsiness and drug interactions still apply. CBD oils vary widely in what they actually contain.
Topicals and transdermal patches
What it avoids: the lungs. Creams and balms act mostly where they are applied.
What remains: patches are designed to deliver the substance into the blood, so drowsiness and interactions can apply. No study has looked at either form for bone.
Prescription cannabinoids
What they are: FDA-approved medicines (dronabinol (Marinol, Syndros), nabilone (Cesamet) and cannabidiol (Epidiolex)) prescribed for specific conditions, not bought with a medical card.
What remains: none is approved or studied for osteoporosis, and each has its own side effects and interactions.
True of every form
- The liver processes cannabinoids, and CBD can strain it alongside other medicines [11].
- Interactions with medicines cleared by the same liver enzymes are possible [11].
- THC can cause drowsiness and dizziness, and with fragile bones a fall is the real danger.
- THC and CBD act differently; a result for one does not apply to the other.
All forms as a table
| Form | What it avoids | What remains |
|---|---|---|
| Smoking | Nothing in particular | Smoke; inhaled THC, the route linked to bone loss in rats; liver, interactions, drowsiness |
| Vaping and dabbing | Burning plant material | Hot aerosol; inhaled THC; liver, interactions, drowsiness |
| Edibles and capsules | The lungs | Delayed, long effect; first pass through the liver; interactions, drowsiness |
| Tinctures and sprays | The lungs | Partly swallowed; liver, interactions, drowsiness |
| Topicals and patches | The lungs | Patches reach the blood; interactions and drowsiness possible |
| Prescription cannabinoids | Unregulated product content | Not studied for osteoporosis; own side effects and interactions |
What science doesn’t know yet
The gaps here are not small print. They are the main finding: almost everything a patient would want to know has not been measured.
- No trials in people. Nobody has given cannabis, THC or CBD to people with osteoporosis and measured their bones or fractures [11].
- CBD products are not standardized. Studies used different formulations, purities and doses, so results cannot be added up or turned into advice [11].
- Rodents and cells are not people. A rat skeleton after ovary removal behaves differently from a human skeleton after menopause, and cell lines differ from living bone [16][15].
- Fractures and bone density in people are unknown. No study shows whether any form of cannabis changes them up or down.
- Only one route was tested for THC. The animal study looked at inhalation alone and at one dose [1].
- The animal groups were tiny. Five to seven animals per group in the two main rat studies [1][16].
- Higher doses and other cannabinoids were not tested. The CBD study did not try higher doses or compounds aimed at a single receptor [16].
Is cannabis safe if you have osteoporosis?
With osteoporosis, the side effects that matter most are not the dramatic ones. They are the ones that make a fall more likely, or that add to the load on your liver while you take other medicines.
Dizziness and falls
THC can lower blood pressure on standing up and slow reactions. For most people that is a nuisance; with fragile bones it can mean a broken hip.
Drowsiness
Sleepiness can last into the next morning, especially after edibles. Morning stairs, the shower and the walk to the car are where it shows.
The liver
Clinicians are advised to check liver tests before and during CBD use and to review all medicines for interactions [11].
Smoke and bone
Smoking is a known risk factor for bone loss [2], and inhaled THC added to bone loss in rats [1]. Inhaling is the form with the most questions here.
Driving
THC slows reaction time and judgment. Driving under its influence is illegal in every state, card or no card.
Alcohol and sleep aids
Combined with alcohol, sleeping pills, opioids or anxiety medicines, THC deepens drowsiness and unsteadiness. That combination is where falls happen.
Will cannabis interact with my osteoporosis medication?
For most osteoporosis medicines, nobody has studied it. What is known comes from how cannabinoids are processed in the liver and from what they add to other medicines’ effects. If you take medications for osteoporosis, talk to your doctor first.
What kind of knowledge do you want to see?
Bisphosphonates No data yet
What is known: no study has looked at cannabis together with alendronate, risedronate or zoledronic acid. These medicines are cleared mainly by the kidneys rather than by liver enzymes.
What to ask: whether anything you take could upset your stomach or make it hard to stay upright after the pill, as alendronate requires.
Denosumab No data yet
What is known: no interaction studies with cannabinoids. Denosumab is an antibody, not processed by the liver enzymes that handle cannabinoids.
What to ask: keep the six-month injections on schedule; a missed dose matters more than any interaction.
SERMs, including bazedoxifene and raloxifene Mechanism only
What is known: a 2026 review describes bazedoxifene as also acting on cannabinoid receptors, in the opposite direction to THC [17]. Whether that changes anything for a person taking both has never been tested, and the review notes that such effects need to be confirmed in living organisms [17].
What to ask: mention any cannabis or CBD use when your doctor reviews this medicine.
Glucocorticoids (prednisone and similar) No data yet
What is known: steroids are a common cause of bone loss [2]. Their interaction with cannabis has not been studied for bone; they are processed by liver enzymes, so the general liver caution below applies.
What to ask: whether your steroid dose can be lowered, and whether you need bone protection while you take it.
Sedatives, sleep aids and opioids Known added effect
What is known: THC adds to the drowsiness and unsteadiness these medicines cause. With osteoporosis the risk is not the interaction itself but the fall it can lead to.
What to ask: whether any of these can be reduced, and what to do if you wake up at night.
Medicines cleared by liver CYP450 enzymes Pharmacokinetic data
What is known: CBD uses the same liver enzymes (CYP450) as many common medicines, and together they can raise the risk of liver injury [11]. Many heart, blood-thinning, seizure and mood medicines use these enzymes.
What to ask: a liver test before starting and again later, and a full review of your medicine list, which is what clinicians are advised to do [11].
Who should not use cannabis for this
For some people with osteoporosis the balance tips clearly against cannabis, or at least against starting it before something else is sorted out.
- You have fallen recently, or more than once in the past year.
- You already take several medicines that make you drowsy: sleep aids, opioids, anxiety medicines.
- You have liver disease or abnormal liver tests [11].
- You have had psychosis, or a close family member has.
- You are pregnant or breastfeeding.
- You have new back pain that has not yet been checked for a fracture.
Talk to a licensed physician about whether any of these apply
Does osteoporosis qualify for a medical marijuana card?
It depends on your state. Each state program keeps its own list of qualifying conditions. Osteoporosis is rarely named on its own; more often a person with osteoporosis qualifies through a related condition such as chronic or severe pain, or through a clause that lets the physician certify another serious condition. In every case a licensed physician makes the decision at the appointment, and approval is never guaranteed.
Osteoporosis is named in your state
The physician confirms the diagnosis from your records and decides whether cannabis is appropriate for you, given your medicines and fall risk.
A related condition is listed
Chronic pain after a fracture, arthritis or muscle spasms are listed in many states. The physician assesses that condition, not osteoporosis as such.
Neither is on the list
Some states let a physician certify other debilitating conditions; others do not. The physician explains what your state allows, without a promise of approval.
What else has a doctor diagnosed?
Pick one to see how it fits. Your physician decides; this only shows where to read more.
Choose a diagnosis to see how it fits.
Chronic pain. The most widely listed qualifying condition, and the usual route for people whose back or hip pain has lasted months after a fracture. Read medical cannabis and chronic pain.
Arthritis. Osteoarthritis often sits alongside osteoporosis, and arthritis is listed in a number of states. Read medical cannabis and arthritis.
Cancer. Listed in nearly every state program, and some cancer treatments speed bone loss. Read medical cannabis and cancer.
Muscle spasms. Back muscles often spasm around a spine fracture, and severe or persistent spasms are listed in several states. Read medical cannabis and muscle spasms.
Insomnia. Listed in fewer states, and sedation brings its own fall risk with fragile bones. Read medical cannabis and insomnia.
Anxiety. Listed in some states; THC can also worsen anxiety in some people. Read medical cannabis and anxiety.
None of these. Check what your state lists and whether its physicians may certify other conditions on the laws and regulations pages.
Medical card or recreational purchase
In states where adults can also buy cannabis without a card, the card still changes a few practical things. The details are set by each state.
| Aspect | With a medical card | Recreational purchase |
|---|---|---|
| Taxes | Many states charge patients lower taxes or none of the adult-use excise tax | Full adult-use taxes |
| Limits | Often higher possession and purchase limits | Standard adult limits |
| Products | Medical dispensaries, sometimes stronger or medical-only products | Adult-use stores only |
| Physician involvement | A licensed physician reviews your conditions and medicines | None |
| Document | State patient card or registration | Government ID showing age 21 or older |
Will a card save you money?
In states with both medical and adult-use programs, the difference is mostly taxes: patients often skip part of what recreational buyers pay at the register. Whether that outweighs the evaluation and any state fee depends on your state and how much you would buy. The breakdown by state is in medical vs. recreational cannabis taxes.
What the program in your state involves
Every program is run by a state agency, usually the health department or a cannabis control office. After a physician’s recommendation, you register with that agency, and once approved you buy from licensed dispensaries in that state. Most programs also let a registered caregiver buy for a patient who cannot go in person, under the state’s own rules.
Cards are state documents. Some states honor cards from other states (reciprocity) and many do not; see which states accept out-of-state medical marijuana cards. Delta-8 THC and CBD sold in shops and online outside dispensaries are a different market: often less tightly checked, with labels that may not match the contents, and delta-8 acts much like regular THC.
Legal protections: firearms, work and privacy
Firearms. Federal law bars anyone who is an unlawful user of a controlled substance from buying or possessing a firearm [18]. Cannabis remains federally controlled, so a state card does not change the federal rule; an example of how this plays out in one state is owning guns with a medical card in Ohio.
Work. Employment protections for card holders differ by state. Many employers can still test and enforce drug-free policies, especially in safety-sensitive jobs.
Privacy. Your health information held by physicians is protected under the HIPAA Privacy Rule [19], and state patient registries are confidential; how we handle it is described on our HIPAA compliance page.
Driving. Driving while impaired by cannabis is illegal everywhere, with or without a card.
What this means if you are considering it
If you have osteoporosis and are thinking about medical cannabis, the useful next step is a conversation, not a product. A physician can weigh what you hope it will help with (usually pain or sleep, not bone strength) against your medicines, your liver and your risk of falling.
Where are you right now?
Choose the situation closest to yours.
Just diagnosed. Start with your bone treatment plan, then bring the cannabis question to a physician with your scan results and medicine list. What to bring to the appointment.
Pain after a fracture. Lasting pain is usually assessed as chronic pain, the most widely listed qualifying condition. Medical cannabis and chronic pain.
Already have a card. Tell the physician about your diagnosis and any new bone medicine at your next renewal. How renewal works.
Moving to another state. Your card stays with the state that issued it; in the new state you apply under its program. Choose your new state or check which states accept out-of-state cards.
What to bring to the appointment
Tap each item when you have it ready.
Six items to prepare.
Questions worth asking
- Could any form of cannabis interact with the medicines on my list?
- Given my fall history, which effects should I watch for?
- Should I have a liver test before starting, and when again?
- Is THC, CBD or neither more appropriate for what I want to help?
- How will we know if it is not working, and when do we stop?
An evaluation makes sense if
- you live in a state with a medical program;
- you have a listed condition such as chronic pain;
- your bone treatment stays in place;
- you want a physician to review your medicines first.
It is not the right step if
- you hope cannabis will replace your bone medicine;
- you have fallen recently and have not been checked;
- you have new, unexplained back pain;
- you are pregnant or breastfeeding.
This page is educational and does not replace a medical appointment. A recommendation for medical cannabis is a physician’s decision based on your history.
How to get a medical card for osteoporosis online
The evaluation happens online, so there is no clinic to travel to and no waiting room to sit in. Four steps, and only the first three are ours.
Fill in the intake form
Your state, health history and medicines. It takes about five minutes.
See a physician licensed in your state
A one-on-one appointment of about fifteen minutes. You agree on the time with the physician, so keep an hour free rather than a minute.
Receive your signed recommendation
If the physician recommends cannabis, the signed document can arrive in as little as 15 minutes after the appointment, depending on your state.
Register with your state
You submit the recommendation to your state program. Review times and any state fee are set by the state, not by us.
What you end up with
A signed recommendation from a physician licensed in your state, and then, once your state approves the registration, a patient card that lets you buy from its licensed dispensaries.
Across 250 reviews from patients in the states where we are licensed. We do not sort them by score and do not hide the low ones.
- 150,000+patients evaluated – everyone who has been through an appointment with us, in every state where we are licensed
- Since 2017doing only this: online evaluations for medical cannabis programs, and nothing else on the side
Questions people ask about osteoporosis and cannabis
Can CBD help osteoporosis?
Is smoking cannabis bad for your bones?
In the only animal study of inhaled THC after ovary removal, it was: rats lost more bone density than rats breathing air [1]. Tobacco smoking is a known risk factor for bone loss [2]. Edibles, oils and creams avoid the lungs, so that result does not apply to them, but the liver, drug interactions and drowsiness apply to every form.
Does osteoporosis go away, or can it be reversed?
It does not go away on its own. Treatment can raise bone density and lower fracture risk, and some people move back into the osteopenia range on later scans, but osteoporosis is managed for the long term [9][8]. See what treatments work.
Will cannabis interact with my osteoporosis medication?
For most bone medicines this has not been studied. CBD shares liver enzymes (CYP450) with many medicines, and clinicians are advised to check liver tests and review the medicine list [11]. THC adds to the drowsiness of sleep aids and opioids. Details for each medicine are in the interactions section.
Does osteoporosis qualify for a medical card?
It depends on the state. Osteoporosis is rarely listed by name; many people qualify through chronic pain or another listed condition, and the physician decides at the appointment. See how osteoporosis fits state lists.
What about delta-8 THC or CBD sold without a card?
Hemp-derived products sold in shops and online are often less tightly regulated than dispensary products, and labels may not match the contents. Delta-8 THC acts much like regular THC, with the same drowsiness and interaction concerns, and CBD products vary widely, one reason reviewers call for pharmaceutical-grade CBD [11].
Can I use my card in another state?
Sometimes. Reciprocity exists in some states and not others, and visitor rules vary. Check which states accept out-of-state cards and traveling with cannabis before a trip.
What if my card is lost?
Most states let you request a replacement from the program that issued it. The steps are in what to do if your card is lost and the medical card FAQ.
How do I renew my medical card?
Cards expire on a schedule your state sets, and renewal means a repeat evaluation and a new recommendation. Bring any changes since last time: a new osteoporosis diagnosis, a bone medicine, a fracture or a fall. Each state has its own renewal page, for example California, Texas or New York – or choose your state from the list at the top of this page.
How much does it cost, and what if I’m not approved?
The evaluation fee for your state is shown on your state’s page before you pay, with nothing extra for the diagnosis; a state registration fee, where one exists, is paid to the state separately. Whether a recommendation is issued is the physician’s medical decision, and if the physician does not approve you, the evaluation fee is refunded in full. Details are on how the medical card works.
Is an online evaluation legitimate?
Yes, where state law allows telemedicine for medical cannabis evaluations. The appointment is one-on-one with a physician licensed in your state, held online instead of in a clinic, and the recommendation is the same document an in-person visit would produce. The physicians who review our medical content are listed on our doctors page.
Who finds out? Privacy, firearms and work
Privacy: your health information is protected under the HIPAA Privacy Rule [19], and state patient registries are confidential; see our HIPAA compliance page. Firearms: federal law bars unlawful users of a controlled substance from having a firearm [18], and a state card does not change that. Work: protections differ by state, and many employers can still enforce drug-free policies; read your state’s rules on the laws and regulations pages.
More research on cannabis and osteoporosis
This page cites a selection of studies. Our research library holds every study we track on cannabis and osteoporosis, from laboratory work to clinical trials, and lets you filter them by cannabinoid, study type and year.
- studies
- 120+
- in people
- 58
- clinical trials
- 0
Related bone, joint and pain conditions
Osteoporosis often comes with other diagnoses, and several of them appear on more state lists. Each page covers its own research and qualifying rules.
Bone health resources and latest research
For background on how cannabis works in the body, the tax side of a card, and new articles as research and laws change:
References
19 sources
- 1. Chronic Δ9-Tetrahydrocannabinol Inhalation Following Osteoporosis Results in Bone Deficits. DOI: 10.3390/biomedicines14071620 PMID: 42512092
- 2. National Institute of Arthritis and Musculoskeletal and Skin Diseases. Osteoporosis. 2023.
- 3. Bone Health and Osteoporosis Foundation. What is osteoporosis and what causes it?. 2024.
- 4. World Health Organization. Assessment of fracture risk and its application to screening for postmenopausal osteoporosis (Technical Report Series 843). 1994.
- 5. Osteoporosis Research Ltd. FRAX fracture risk assessment tool. 2026.
- 6. Endocrine Society. Semaglutide linked to lower bone fracture risk. 2026.
- 7. Centers for Disease Control and Prevention, National Center for Health Statistics. ICD-10-CM: International Classification of Diseases, Tenth Revision, Clinical Modification. 2026.
- 8. American Family Physician. Osteoporosis: Common Questions and Answers. 2023.
- 9. Osteoporosis Canada. Clinical practice guideline for management of osteoporosis and fracture prevention in Canada: 2023 update. 2023.
- 10. National Osteoporosis Guideline Group. UK clinical guideline for the prevention and treatment of osteoporosis. 2022.
- 11. Effects of Cannabidiol on Bone Health: A Comprehensive Scoping Review. DOI: 10.3390/biomedicines14010208 PMID: 41595744
- 12. Inhibition of FAAH suppresses RANKL-induced osteoclastogenesis and attenuates ovariectomy-induced bone loss partially through repressing the IL17 pathway. DOI: 10.1096/fj.202200911R PMID: 36468880
- 13. The cannabinoid receptor 2 is an in vivo receptor of bisphenol A during bone formation. DOI: 10.1016/j.jhazmat.2026.141317 PMID: 41638126
- 14. Correlation analysis of positron emission tomography/computed tomography-magnetic resonance imaging of cannabinoid type 1 receptor in the lumbar spine and brain of aged osteoporosis female cynomolgus monkeys. DOI: 10.21037/qims-23-118 PMID: 38106237
- 15. Unveiling the toxic effects of perfluorooctanoic acid on osteoblast function and extracellular matrix deposition using 2D and 3D models. DOI: 10.1038/s41420-025-02863-5 PMID: 41513615
- 16. Long-term cannabidiol treatment did not restore bone microstructural defects in skeletally mature ovariectomized Sprague-Dawley rats. DOI: 10.1093/jbmrpl/ziaf197 PMID: 41589111
- 17. Bazedoxifene and Beyond: Identifying This SERM’s Targets and Deciphering Its Molecular Mechanisms. DOI: 10.1155/adpp/3028716 PMID: 42553575
- 18. Legal Information Institute, Cornell Law School. 18 U.S. Code § 922: Unlawful acts. 2026.
- 19. U.S. Department of Health and Human Services. Your rights under HIPAA. 2024.