Osteoporosis in Older Adults: Testing, T-Scores, and Treatment (2026)
Osteoporosis in older adults is silent until a fracture. Who should get a DEXA scan, what a T-score means, and how treatments like bisphosphonates cut fracture risk.
ElderHearth offers general information, not medical advice. Ask your parent's doctor whether a bone-density test and treatment are right for them.
Because osteoporosis in older adults has no symptoms until a bone breaks, the most important move is to find it before the fracture. That comes down to a simple, painless scan and knowing one number. Here's who should be tested, what the result means, and what treatment can do, so a parent's first sign of weak bones isn't a broken hip.
What osteoporosis in older adults is, and why it's silent
Osteoporosis means bones have lost density and become fragile, so they break far more easily, sometimes from a minor fall or bump. The danger is that you can't feel it happening. There's usually no pain or warning until a bone fractures, which is why screening matters so much, especially before the fall that tests those bones. (Preventing the fall itself is the other half; see home safety for seniors.)
Who should get a bone density (DEXA) test
Osteoporosis is diagnosed with a DEXA scan, a quick, painless X-ray of bone density. The U.S. Preventive Services Task Force recommends:
- Women: start screening at age 65 (earlier if there are added risk factors).
- Men: no formal screening guideline, but it's reasonable to ask the doctor about testing around age 70, or after any low-impact fracture.
If your parent has broken a bone from a minor fall, ask about a DEXA scan regardless of age.
What a T-score means
A DEXA result is reported as a T-score, which compares your parent's bone density to a healthy young adult:
| T-score | What it means |
|---|---|
| -1.0 or above | Normal bone density |
| Between -1.0 and -2.5 | Osteopenia (low bone mass) |
| -2.5 or lower | Osteoporosis |
Knowing the number turns a vague worry into a clear plan.
Treating osteoporosis in older adults
Beyond the calcium, vitamin D, and weight-bearing exercise covered in our bone health guide, doctors can prescribe medication when fracture risk is high. Bisphosphonates are the usual first-line treatment, and they work:
- They reduce spinal fractures by about 50 to 60% and hip fractures by roughly 40% (up to about half in those at highest risk).
- They come as a daily or monthly pill, or a once-a-year IV infusion.
- A common approach is about five years of oral treatment (or three years of the yearly IV), then a reassessment with the doctor.
Two serious side effects, osteonecrosis of the jaw and atypical femur fractures, get a lot of attention but are exceedingly rare, and the femur-fracture risk mainly rises with use beyond about five years. That's exactly why doctors often plan a "drug holiday" after three to five years for lower-risk patients, and why they use a tool called FRAX (the Fracture Risk Assessment Tool) to decide who truly needs medication in the first place.
Other medication options exist if bisphosphonates aren't tolerated, so this is a conversation worth having rather than avoiding.
Frequently Asked Questions
What is a normal bone density T-score? A T-score of -1.0 or above is normal. Between -1.0 and -2.5 is osteopenia (low bone mass), and -2.5 or lower is osteoporosis.
Who should get a bone density test? Women should start at age 65 (earlier with risk factors). Men can ask about testing around 70. Anyone who breaks a bone from a minor fall should be tested regardless of age.
Does osteoporosis have symptoms? No, it's silent until a fracture occurs, which is why screening with a DEXA scan matters.
How well does osteoporosis treatment work? First-line bisphosphonates reduce spinal fractures by roughly 50 to 60% and hip fractures by about 40% (up to roughly half in the highest-risk patients), taken as a pill or a yearly infusion.
A last word
Osteoporosis in older adults is the rare health problem you can catch before it ever hurts, if you test for it. Ask whether your parent is due for a DEXA scan, learn the T-score, pair any treatment with the nutrition and movement in our bone health guide, and fall-proof the home so strong bones aren't put to the test. It's quiet, high-leverage protection for aging safely at home.
If you'd like help thinking through bone and fall safety together, you're welcome to reach out.
Sources
- U.S. Preventive Services Task Force, Osteoporosis Screening recommendation.
- Bone Health and Osteoporosis Foundation, Bone Density Exam/Testing and T-score interpretation.
- Bisphosphonate benefits, rare risks, and drug holidays, Cleveland Clinic Journal of Medicine.