Osteoporosis itself does not kill you, but the fractures it causes can. A hip fracture in an older adult is a serious medical event: the surgery, the immobility that follows, and complications such as pneumonia and blood clots can all be fatal. Vertebral fractures can also shorten life by causing chronic pain, reduced lung capacity, and a steady loss of independence. The good news is that fractures are largely preventable with diagnosis, treatment, and fall prevention.
In my practice, this is one of the most common questions I hear from patients newly diagnosed with osteoporosis. Below I explain exactly how the condition becomes dangerous, who is most at risk, and what you can do about it. For the bigger picture, see our osteoporosis guide.
What Is Osteoporosis?
Osteoporosis is a skeletal disease in which bones lose mass and their internal structure becomes thin and porous. Weaker bones break more easily, sometimes from a simple fall from standing height or even a cough or bend. These are called fragility fractures.
It is often called a “silent” disease because bone loss causes no symptoms. Many people learn they have osteoporosis only after their first fracture. It is most common in postmenopausal women, but men and younger people with certain medical conditions or medications can develop it too.
How it is diagnosed
The standard test is a dual-energy X-ray absorptiometry (DXA) scan, which measures bone mineral density at the hip and spine. Results are reported as a T-score, comparing your bones with those of a healthy young adult.
| T-score | Category | What it means |
|---|---|---|
| -1.0 or higher | Normal | Bone density in the healthy range |
| Between -1.0 and -2.5 | Osteopenia (low bone mass) | Bones thinner than ideal; risk depends on other factors |
| -2.5 or lower | Osteoporosis | Significantly increased fracture risk |
| -2.5 or lower plus a fragility fracture | Severe (established) osteoporosis | Highest risk of further fractures |
A fragility fracture of the hip or spine can establish the diagnosis even without a DXA scan. Doctors also use fracture risk calculators that combine age, bone density, and risk factors.
How Osteoporosis Can Lead to Death
The danger lies in what happens after a bone breaks. Different fractures carry very different levels of risk.
Hip fractures
A hip fracture is the most dangerous osteoporotic fracture. Almost all require surgery, and many patients are frail, elderly, and living with heart, lung, or kidney disease. The risk of death is highest in the first months after the fracture and remains raised for at least a year.
Deaths are rarely caused by the broken bone itself. They result from the chain of events it sets off:
- Blood clots: immobility raises the risk of deep vein thrombosis and pulmonary embolism, a clot that travels to the lungs.
- Pneumonia: lying in bed and shallow breathing make chest infections more likely.
- Surgical and anesthetic risks, including heart strain, in people with other illnesses.
- Delirium, pressure sores, and urinary infections during a hospital stay.
- Loss of independence: many survivors never regain their previous mobility, and some need long-term care.
Vertebral fractures
Vertebral (spine) fractures are the most common osteoporotic fracture, and many go unnoticed. Several fractures can cause loss of height and kyphosis, a forward curve of the upper back.
Severe kyphosis compresses the chest and abdomen. This can reduce lung capacity, cause early fullness when eating, and lead to chronic pain. Vertebral fractures are associated with shorter survival, largely through this gradual decline in breathing, mobility, and overall health.
Other fractures
Wrist fractures are rarely dangerous in themselves, but they are an important warning sign. A first fragility fracture of any kind sharply raises the risk of the next one, often a hip or spine fracture.
Who Is Most at Risk?
From early adulthood onward, bone breakdown gradually outpaces bone formation. The drop in estrogen at menopause speeds this up considerably in women. Key risk factors include:
- Age over 50, with risk rising steeply over 70.
- Female sex, especially after menopause or early menopause.
- Family history, particularly a parent with a hip fracture.
- Low body weight and low calcium or vitamin D intake.
- Smoking, heavy alcohol use, and physical inactivity.
- Long-term glucocorticoid (steroid) use and some other medications.
- Medical conditions such as rheumatoid arthritis, overactive thyroid, celiac disease, and multiple myeloma.
- Frequent falls, poor balance, or poor eyesight.
The people at greatest risk of dying after a fracture are older, frailer, male (men tend to fare worse after hip fracture), and those with several other health problems.
Prevention and Treatment
Treating osteoporosis lowers fracture risk, and lowering fracture risk is how you reduce the risk of dying from the disease.
Medications
- Bisphosphonates (such as alendronate, risedronate, and zoledronic acid) slow bone breakdown and are usually first-line.
- Denosumab, an injection every six months, also blocks bone breakdown. It should not be stopped abruptly without a plan, because bone loss can rebound quickly.
- Anabolic (bone-building) drugs such as teriparatide, abaloparatide, and romosozumab are used for very high-risk patients.
- Hormone therapy and SERMs such as raloxifene may suit selected women.
Lifestyle and fall prevention
Adequate calcium (mostly from food) and vitamin D, regular weight-bearing and muscle-strengthening exercise, not smoking, and limiting alcohol all support bone health. Balance training such as tai chi reduces falls.
Fall prevention is just as important as bone strength. Remove trip hazards, add grab rails and good lighting, review medications that cause dizziness, and have your eyesight checked. For people living with fracture pain, our article on osteoporosis treatment for pain covers the options.
When to See a Doctor
Ask about a bone density scan if you are a woman over 65, a man over 70, or younger with risk factors such as steroid use or a previous fracture. See a doctor promptly after any fracture from a minor fall, sudden back pain, or noticeable loss of height.
After a hip fracture, ask specifically about starting osteoporosis treatment. Too many people are treated for the fracture but never for the underlying bone disease.
Frequently Asked Questions
Is osteoporosis listed as a cause of death?
Rarely. Death certificates usually record the immediate cause, such as pneumonia or pulmonary embolism, even when an osteoporotic hip fracture started the chain of events. This is why the disease’s true impact is often underestimated.
Can osteoporosis be reversed?
Treatment can increase bone density and substantially lower fracture risk, especially with bone-building drugs. Bone density rarely returns fully to a young adult’s level, but many people move out of the highest-risk category.
How long can you live with osteoporosis?
Many people live a normal lifespan with osteoporosis, particularly if it is diagnosed before a fracture and treated. Life expectancy is affected mainly by whether serious fractures occur.
Does osteoporosis cause pain?
Low bone density itself is painless. Pain comes from fractures, especially vertebral fractures, which can cause sudden back pain or long-term aching from changes in posture.
Key Takeaways
- You can die from the complications of osteoporotic fractures, especially hip fractures, though not from low bone density itself.
- Risk is highest in older, frail people with other illnesses.
- DXA scanning, effective medications, and fall prevention greatly reduce fracture risk.
- Any fracture from a minor fall deserves a bone health assessment.
