Osteoporosis is usually painless; a fracture is not
Seek Prompt or Emergency Assessment If
- You cannot stand or bear weight after a fall, or the hip, thigh, wrist, shoulder or limb looks shortened, rotated or deformed.
- New severe back pain began after a fall, lifting, bending or coughing—especially with known osteoporosis, older age or steroid treatment.
- Back pain is accompanied by new leg weakness, saddle numbness, loss of bladder or bowel control, fever, collapse or major trauma.
- Persistent new thigh or groin pain develops while using a long-term antiresorptive medicine; an incomplete atypical femoral fracture must be considered.
- Sudden pain or loss of function follows even a minor injury in a person with a previous fragility fracture or very high fracture risk.
- Pain is progressive at night or associated with fever, weight loss, a known cancer, severe illness or unexplained laboratory abnormalities.
Do not repeatedly “test” whether you can walk on a suspected hip or thigh fracture. Call emergency services when there is severe injury, neurological change, collapse or inability to move safely.
What Is Osteoporosis?
Bone is living tissue that is continually renewed. Osteoporosis develops when bone quantity, internal structure and strength deteriorate enough to increase fracture risk. It affects women and men.
It is not simply “low calcium,” normal ageing or a problem visible from the outside. Many people feel completely well. A fracture after low-energy trauma, an incidental vertebral fracture or a properly interpreted bone-density scan may be the first clue.
What Is a Fragility Fracture?
A fragility fracture occurs after force that would not normally break healthy bone—often a fall from standing height or less. Common sites include the hip, vertebrae, wrist, upper arm and pelvis.
A high-energy fracture can still occur in someone with osteoporosis, and not every low-energy fracture is caused solely by osteoporosis. The event should trigger a clinical review rather than an assumption.
Who Should Have a Bone-Health Assessment?
Previous fragility fracture
Especially hip or vertebral fracture, multiple fractures or a recent fracture.
Age and menopause
Risk rises with age and after menopause; men also develop clinically important osteoporosis.
Steroid exposure
Current or repeated systemic glucocorticoids can weaken bone quickly, depending on dose and duration.
Falls or frailty
Recurrent falls, poor balance, reduced mobility, low muscle mass or prolonged immobility.
Low body weight
Low BMI, unintentional weight loss, undernutrition or an eating disorder.
Family history
Parental hip fracture or a strong pattern of osteoporosis and fragility fractures.
Risk assessment is case-finding, not a universal scan for every young healthy adult. In younger people, DXA interpretation and the search for an underlying cause require particular care.
Conditions and Medicines That Can Weaken Bone
Never stop steroids, cancer treatment, seizure medicines or other prescribed treatment without the responsible clinician.
How Is Fracture Risk Estimated?
- Identify prior fracturesSite, trauma level, number and recency are recorded; vertebral and hip fractures are particularly important.
- Review clinical risksAge, sex, weight, smoking, alcohol, parental hip fracture, steroids, rheumatoid arthritis and secondary causes are considered.
- Assess falls separatelyA fracture calculator does not capture every aspect of balance, vision, medicines, home hazards or frailty.
- Calculate probability when appropriateFRAX estimates 10-year hip and major osteoporotic-fracture probability, with or without femoral-neck BMD.
- Use DXA selectivelyBone density refines diagnosis and risk when the result could change treatment or provide a useful baseline.
- Classify urgencyA recent fragility fracture or very high risk may require prompt specialist treatment rather than waiting for routine reassessment.
FRAX is a decision-support tool, not a diagnosis and not a guarantee. Country-specific thresholds, age, very recent or multiple fractures, falls and clinical judgement affect interpretation.
What Happens During a DXA Scan?
Dual-energy X-ray absorptiometry—written DXA or DEXA—uses a very small amount of radiation to measure bone mineral density. The hip and lumbar spine are commonly scanned while you lie on an open table. There is no tunnel and usually no injection.
- Wear clothing without metal around the scan area when possible and mention recent contrast or nuclear-medicine studies.
- Tell the team about pregnancy possibility, previous hip or spine surgery, implants, fractures and difficulty lying flat.
- Measurements are compared with a reference database and interpreted with age, sex and clinical risk.
- For reliable follow-up, the same facility and machine are helpful because small differences may reflect equipment rather than true change.
Understanding T-scores and Z-scores
T-score categories do not by themselves decide treatment. A person may need therapy after a fragility fracture despite a score above −2.5, while another result may be distorted by arthritis, vertebral collapse, metal or technical positioning.
DXA Report Terms and Pitfalls
Do I Need X-rays or Other Imaging?
Blood Tests and Secondary Causes
Blood tests do not directly diagnose osteoporosis, but they help identify a treatable cause and make medicines safer. Selection depends on history and examination.
- Full blood count, calcium, phosphate, alkaline phosphatase, kidney and liver function.
- Vitamin D and, when indicated, parathyroid and thyroid testing.
- Coeliac screening, inflammatory markers, protein studies or other tests when symptoms suggest malabsorption, inflammation or a blood disorder.
- Testosterone or other hormone assessment in selected patients.
- Urine calcium or specialist metabolic evaluation when kidney stones, unusual fractures or mineral disorders are relevant.
Low vitamin D, osteomalacia, chronic kidney disease–mineral bone disorder, hyperparathyroidism and some cancers are not interchangeable with ordinary age-related osteoporosis.
Exercise: Build Strength and Reduce Falls
With vertebral fractures or very high risk, repeatedly loaded spinal flexion, forceful twisting and high-impact exercise may need modification. “Be careful” should not become permanent inactivity; an individual physiotherapy plan can restore safe confidence.
Calcium, Vitamin D and Everyday Bone Health
- Food first: estimate calcium intake from dairy or fortified alternatives, fish eaten with bones, pulses, sesame and other suitable foods.
- Fill a gap rather than megadose: supplements are most useful when dietary intake or vitamin D status is inadequate.
- Check safety: kidney stones, impaired kidney function, high blood calcium and interacting medicines can change supplement choice.
- Protein and energy: adequate nutrition supports muscle, balance, recovery and fracture healing.
- Smoking and alcohol: stopping smoking and avoiding heavy alcohol use improve the overall fracture-risk strategy.
- Sun exposure: vitamin D advice must balance skin type, season, clothing, occupation and sun-damage risk.
Calcium and vitamin D support treatment but do not replace osteoporosis medicine when fracture risk is high.
Fall Prevention Is Fracture Prevention
Medicines That Reduce Fracture Risk
Availability and approved indications vary. The “strongest” drug is not automatically the best; fracture pattern, kidney function, calcium status, dental health, pregnancy potential, cancer history, adherence and patient preference all matter.
Medicine Safety Without Unnecessary Fear
- Oral dosing: follow instructions about fasting, water, remaining upright and separation from calcium or other medicines.
- Dental care: maintain routine hygiene and tell the dentist about antiresorptive treatment; do not postpone urgent dental infection care.
- Jaw osteonecrosis: rare at osteoporosis doses; risk is considered alongside the much more common harm of fragility fractures.
- Atypical femoral fracture: rare, but persistent thigh or groin pain merits imaging of the femur and review of both sides.
- Low calcium: vitamin D, calcium and kidney function are corrected or checked when relevant before potent treatment.
- Injection timing: never create a self-directed “drug holiday.” Some scheduled injections require a follow-on medicine if they must stop.
Monitoring and Treatment Review
- Confirm treatment was taken correctlyAdherence, oral technique, injection dates, side effects and access problems are reviewed.
- Look for new fractures or fallsA fracture during treatment does not automatically prove drug failure, but it changes risk and prompts reassessment.
- Recheck relevant laboratory testsKidney function, calcium and vitamin D are monitored according to medicine and health status.
- Repeat DXA at a meaningful intervalTiming depends on baseline risk, treatment and local precision; scanning too soon may show only measurement noise.
- Review duration and next stepSelected bisphosphonate users may pause after formal reassessment; high-risk patients may continue or change treatment.
- Plan every transitionBone-forming courses require consolidation, and stopping some scheduled injections requires another antiresorptive strategy.
Common Myths About Osteoporosis
Frequently Asked Questions
Does osteoporosis cause pain?
Usually not by itself. New pain may represent a fracture or another condition and should be assessed according to its pattern and severity.
What is a fragility fracture?
It is a fracture after low-energy trauma, commonly a fall from standing height or less. It should prompt assessment of future fracture risk and underlying causes.
Is osteopenia the same as osteoporosis?
No. Osteopenia describes a T-score below normal but above the osteoporosis threshold. Treatment still depends on overall fracture risk, not the label alone.
Is a T-score of −2.5 always the treatment threshold?
No. It is a diagnostic classification point on valid DXA sites, not a universal treatment threshold. Previous fracture, age, FRAX and other risks matter.
What is the difference between a T-score and Z-score?
A T-score compares you with young healthy adults; a Z-score compares you with people of similar age and sex. The appropriate interpretation depends on age and clinical setting.
What does FRAX tell me?
FRAX estimates 10-year probabilities of hip and major osteoporotic fracture using clinical risks, with optional femoral-neck BMD. It does not capture every fall or clinical nuance.
Do I need a DXA after a fragility fracture?
Often it is useful for baseline and risk refinement, but treatment should not always be delayed when a recent hip or vertebral fracture already indicates high risk.
How often should DXA be repeated?
There is no single interval for everyone. It depends on baseline risk, medicine, health changes, local measurement precision and whether the result will change care.
Can I exercise with osteoporosis?
Yes. Resistance, balance and weight-bearing activity are beneficial. Fracture history and balance may require modifications or supervised progression.
Should I take calcium and vitamin D?
They may be needed when food intake or vitamin D status is inadequate. Dose and safety should account for kidney stones, kidney function, blood calcium and other medicines.
Can osteoporosis medicines harm the jaw?
Osteonecrosis of the jaw is a rare complication at osteoporosis doses. Good dental care and individual risk discussion are appropriate; fracture-prevention benefits are often much greater.
What is an atypical femoral fracture?
It is a rare stress-type fracture of the thigh bone associated with several factors, including prolonged antiresorptive exposure. Persistent thigh or groin pain needs prompt review.
Can I take a drug holiday?
Only selected people using bisphosphonates should pause after formal risk review. Do not apply this idea to every injectable treatment or stop any treatment yourself.
Why must some scheduled injections not be stopped suddenly?
Their effect can reverse quickly, allowing rapid bone turnover, bone loss and sometimes multiple vertebral fractures. A planned follow-on antiresorptive is usually required.
Can osteoporosis be cured?
Fracture risk can often be reduced substantially, and bone density may improve. Long-term care focuses on preventing fractures, maintaining function and treating reversible causes.