Quick answer. Osteoporosis is a condition where bones become weak and brittle, raising the risk of fractures of the hip, spine and wrist – often from a minor fall. It is a “silent” disease, usually causing no symptoms until a bone breaks, and risk rises with age, after menopause (oestrogen loss speeds bone loss), and with smoking, low calcium/vitamin D and inactivity. It is diagnosed with a DXA bone-density scan (a T-score of -2.5 or lower means osteoporosis), often alongside FRAX to estimate fracture risk. It is prevented and treated with adequate calcium and vitamin D, weight-bearing exercise, fall prevention, stopping smoking and limiting alcohol, plus medication (such as bisphosphonates or denosumab) for those at high risk.
Osteoporosis weakens bones from the inside, making them fragile enough to break from a stumble, a cough or a minor fall. Because it is painless until a fracture happens, many Singaporeans only learn they have it after breaking a hip, spine or wrist. In an ageing population this matters: hip fractures in older adults can mean lost independence and a raised risk of death. The encouraging news is that osteoporosis can be detected with a simple scan, and bone loss and falls can be reduced through diet, exercise, lifestyle and, where needed, medication.
At a glance
| Aspect | Detail | Notes |
|---|---|---|
| What it is | Bones become weak, brittle and break easily | "Silent" – usually no symptoms until a fracture |
| Common fractures | Hip, spine, wrist | Often from a minor fall; hip fractures are most serious |
| Main test | DXA bone-density scan (BMD) | Quick, painless, low-dose X-ray of hip and spine |
| Diagnosis | T-score of -2.5 or lower, or any fragility fracture | FRAX/OSTA help estimate fracture risk |
| Who to screen | Women 65+, men 70+, or younger with risk factors or after a fracture | GP can assess and refer for a scan |
| Treatment | Calcium, vitamin D, exercise, fall prevention; bisphosphonates or denosumab if high-risk | Medication prescribed and monitored by a doctor |
What osteoporosis is and why it is a "silent" disease
Osteoporosis means “porous bones” – the density and quality of bone are reduced, so bones become weak and brittle and break more easily. It develops gradually with no early warning signs, which is why it is called a silent disease: there is usually no pain or symptom until a bone actually breaks.
Fractures most commonly affect the hip, spine and wrist, and often happen from a low-trauma event such as a minor fall from standing height. Spine (vertebral) fractures can also cause gradual height loss and a stooped posture. Hip fractures in older adults are particularly serious: in Singapore, around one in three people who suffer a hip fracture lose functions such as the ability to walk, and roughly one in five die within a year – making osteoporosis a major issue for Singapore’s ageing population. Singapore records thousands of hip fractures a year, a number projected to rise as the population ages.
Who is at risk
Some risk factors cannot be changed, while others can be reduced:
- Age – bone density falls as we get older.
- Being female and post-menopausal – the drop in oestrogen after menopause accelerates bone loss; early menopause (before 45) adds risk.
- Low body weight or small frame, and a family history of osteoporosis or hip fracture.
- Smoking and excess alcohol.
- Low calcium and vitamin D intake, and a sedentary lifestyle.
- Long-term steroid (corticosteroid) use and certain other medications.
- Some medical conditions, such as overactive thyroid, rheumatoid arthritis, and conditions affecting hormones or absorption of nutrients.
- A previous fragility fracture (a break from a minor fall) – this is a strong warning sign.
Screening and diagnosis: the DXA scan, T-score and FRAX
The standard test is a bone mineral density (BMD) scan using DXA (dual-energy X-ray absorptiometry), also called bone densitometry. It is quick, painless and uses a very low dose of radiation, usually measuring the hip and spine.
Results are reported as a T-score, which compares your bone density to that of a healthy young adult:
- -1.0 or above – normal bone density.
- Between -1.0 and -2.5 – low bone mass (osteopenia).
- -2.5 or lower – osteoporosis.
Osteoporosis is also diagnosed in anyone who has had a fragility fracture, regardless of the score. Doctors often add the FRAX tool, which combines age, sex, weight and risk factors to estimate the 10-year probability of a major fracture and guide who needs treatment. In Singapore, screening tools such as OSTA (the Osteoporosis Self-Assessment Tool for Asians) can also help flag higher-risk people for a scan.
Who should be screened
Local guidance recommends bone-density screening for people more likely to have osteoporosis, including:
- Women aged 65 and above and men aged 70 and above.
- Post-menopausal women and older adults under those ages who have risk factors (such as low body weight, smoking, long-term steroids, or a family history of hip fracture).
- Anyone who has had a fragility (low-trauma) fracture.
If you are unsure whether you should be tested, a GP can assess your risk factors and refer you for a DXA scan when appropriate.
Prevention and treatment
Bone health can be protected at any age, and treatment can substantially cut fracture risk in people who are at high risk. Key measures include:
- Calcium – aim for adequate intake from foods such as milk and dairy, tofu, fish eaten with bones, and leafy greens. Adults with osteoporosis are generally advised to get around 1,200 mg of calcium a day; older adults need more than younger adults.
- Vitamin D – needed to absorb calcium; safe sun exposure helps, and people with osteoporosis are often advised 800-1,000 IU a day, with supplements where intake is insufficient.
- Weight-bearing and muscle-strengthening exercise – brisk walking, stair climbing, dancing, Tai Chi and resistance training help maintain bone and muscle.
- Fall prevention – good lighting, removing trip hazards, grab bars, suitable footwear and balance exercises.
- Stop smoking and limit alcohol.
- Medication for those at high risk – bisphosphonates are usually first-line, with denosumab and other options (such as SERMs or menopausal hormone therapy in selected people) prescribed and monitored by a doctor.
Treating osteoporosis and preventing falls together greatly reduce the chance of a fracture and help older adults stay independent.
When to see a doctor
Speak to a doctor if you have risk factors for osteoporosis (especially being post-menopausal, older, on long-term steroids, or with a family history), if you have broken a bone from a minor fall, or if you notice height loss or a stooped posture. A GP can assess your risk, arrange a DXA scan and start basic management, and can refer you to an endocrinologist or other relevant specialist (such as an orthopaedic surgeon after a fracture) when more specialised assessment or treatment is needed.
Related guides
- Best Orthopaedic Clinics in Singapore — our editorial shortlist
- orthopaedic clinics directory
- Knee osteoarthritis
- Frozen shoulder
- Gout treatment
Sources
- HealthHub (HPB) – Keeping Bones Strong With Exercise and Calcium-Rich Foods
- HealthHub (HPB) – Daily Calcium Intake for Greater Bone Strength
- 2025 Singapore Consensus Statements on the Management of Osteoporosis – Annals, Academy of Medicine Singapore
- ACE Clinical Guidance – Osteoporosis: Identification and Management in Primary Care
- Health Promotion Board – Rising Trend of Osteoporosis and Bone Health in Singapore
See also
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