What is osteoporosis, and who should be assessed for it?
A condition in which bones lose density and structural quality, becoming fragile enough to break from a fall or force that would not normally cause a fracture — and its defining feature is that it is silent until something breaks.
What is actually happening. Bone is living tissue, continuously broken down and rebuilt. In osteoporosis, breakdown outpaces formation, reducing both mineral density and the internal architecture — the microscopic scaffolding within bone — which is why two people with the same density scan can have different fracture risk.
Why it goes undetected. There are no symptoms. The first indication is frequently a fracture, and vertebral fractures in particular are often not recognised at all — presenting as height loss, a stooped posture or back pain attributed to ageing.
The fractures that matter most: hip, which carries substantial mortality and loss of independence in the year afterwards; spine; and wrist, which is frequently the first and is therefore an important warning.
Who should be assessed:
Anyone who breaks a bone after a fall from standing height or less, over 50 — a fragility fracture is itself the strongest predictor of the next one, and failing to investigate it is the most common missed opportunity in the whole area.
Postmenopausal women, since oestrogen loss accelerates bone loss sharply.
Anyone on long-term oral steroids.
People with early menopause, previous fragility fracture, parental hip fracture, low body weight, smoking, high alcohol intake, or conditions affecting absorption or hormones.
Men too, who are substantially under-diagnosed because it is perceived as a women's condition.
How it is assessed: a risk calculator using clinical factors, then a DEXA scan measuring bone density, reported as a T-score.
What actually helps: weight-bearing and resistance exercise, which loads bone and is the only stimulus that builds it; adequate calcium and vitamin D; stopping smoking; limiting alcohol; falls prevention, including strength and balance work, medication review and vision checks; and drug treatment where risk warrants, which substantially reduces fracture risk.
General information, not medical advice.