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Osteoporosis

Bone that has thinned enough to break from a minor fall or strain. It causes no symptoms until something breaks — which is why a bone density scan, and treating the bone after a first fracture, matter so much.

An older woman with a hand at her lower back, talking to a doctor who is taking notes on a tablet.
What it is
Bone that has lost density and structure, so it fractures easily.
Commonest fractures
Wrist, spine and hip.
The test
A bone density scan (DEXA) of the hip and spine, about 10 to 20 minutes.

What is osteoporosis?

Bone is living tissue, constantly broken down and rebuilt. Up to about the age of 30 the rebuilding wins, and bone becomes denser. After that the balance slowly tips the other way. When the loss outpaces the rebuilding enough, the internal structure of the bone thins and its struts break down, and the bone fractures under loads it used to take.

Bone loss speeds up in women for several years after menopause, when oestrogen falls. Men lose bone too, more gradually, and around one in five men over 50 will have a fracture because of it — alongside about one in three women.

There are no early symptoms. Osteoporosis does not cause aches, and it is not detected by receding gums, brittle nails or a weaker grip. Most people learn they have it when a bone breaks, or when a scan is done for another reason.

What a bone density result means

A bone density scan gives a T-score: how your bone density compares with a healthy young adult. It sets the label, but not the whole decision.

 NormalOsteopeniaOsteoporosis
T-score−1.0 or aboveBetween −1.0 and −2.5−2.5 or below
What it meansBone density in the usual rangeThinner than usual, but not osteoporosisBone thin enough that fractures happen easily
Usually nextCalcium, vitamin D, exercise; rescan if risks changeThe same, plus a fracture risk estimate; medicine for someMedicine to strengthen bone, alongside the above

A broken bone changes the answer. A fracture of the hip or spine after a minor fall or strain means the bone is already failing, and treatment is usually recommended whatever the T-score says.

Symptoms

  • Usually none, until a bone breaks
  • A fracture from a minor fall, or from bending, lifting or coughing
  • Sudden back pain from a spinal compression fracture, sometimes with no injury at all
  • Losing height, or a stoop that is getting worse — see kyphosis
  • Breathlessness or early fullness after eating, where several spinal fractures have shortened the trunk

What raises the risk

Things you cannot change

  • Age, and menopause — especially an early one
  • A parent who broke a hip
  • A previous fracture from a minor fall
  • A small, slight build

Lifestyle

  • Smoking, and more than modest alcohol
  • Little weight-bearing exercise, or long periods of bed rest
  • Low calcium intake, and low vitamin D
  • Being underweight

Medicines and conditions

  • Long-term steroid tablets
  • Overactive thyroid or parathyroid glands
  • Rheumatoid arthritis, coeliac disease, kidney or liver disease
  • Low testosterone in men, and some cancer treatments

Symptoms that need seeing promptly

  • Sudden, severe back pain after a minor strain, a cough, or nothing at all
  • Any broken bone after a fall from standing height
  • Losing more than 4 cm of height, or a stoop that has appeared or worsened
  • Numbness, weakness or bladder changes with back pain — go to an emergency department

Call us on +65 8849 0677. We will see you the same day and arrange imaging if it is needed.

A fracture like this is often the first sign of osteoporosis, and it is the moment when treating the bone does the most good.

Call +65 8849 0677

How osteoporosis is diagnosed

  • Bone density scan (DEXA) — a low-dose X-ray scan of the hip and spine, sometimes the forearm. You lie still, fully clothed, for 10 to 20 minutes
  • Fracture risk assessment — your scan result combined with age, previous fractures, steroid use and other factors, to estimate the risk over the next ten years
  • Blood tests — calcium, vitamin D, kidney and thyroid function, and other tests to look for a treatable cause of bone loss
  • X-rays of the spine — where height loss or back pain suggests a compression fracture that has gone unnoticed

Who should be scanned? Women from around 65 and men from around 70; earlier for anyone who has broken a bone in a minor fall, takes long-term steroids, has had an early menopause, or has another risk factor above.

Osteoporosis treatment

Treatment has two aims: making bone stronger, and making a fall less likely. Both matter, because most fractures need the two things together — weak bone and a fall.

Calcium and vitamin D

Calcium from food where possible: dairy, tofu set with calcium, sardines with bones, leafy greens. Vitamin D is low in many people in Singapore despite the sunshine, since much of the day is spent indoors; a supplement is often needed, and a blood test shows whether.

Exercise

Weight-bearing exercise such as brisk walking or stair climbing, plus resistance work two or three times a week. Balance training, such as tai chi, reduces falls. Swimming and cycling are good for fitness but do little for bone.

Preventing falls

Reviewing medicines that cause drowsiness or dizziness, checking eyesight, removing loose rugs and clutter, lighting the route to the bathroom, and using grab bars where useful.

Medicines that strengthen bone

Recommended for osteoporosis on a scan, and usually after a fragility fracture of the hip or spine whatever the scan shows.

  • Bisphosphonates — weekly or monthly tablets, or a yearly infusion. Usually the first choice
  • Denosumab — an injection every six months. It must not simply be stopped: bone loss rebounds quickly and fractures can follow, so another treatment is planned before it ends
  • Bone-building treatments — daily injections used for severe osteoporosis or repeated fractures, followed by a bisphosphonate to hold the gain
  • Hormone-based options — considered for some women around menopause

Treatment is reviewed after three to five years, and a dental check before starting is sensible, since jaw problems are a rare side effect of these medicines.

Treating fractures

Broken wrists, hips and vertebrae are treated on their own terms — see spinal compression fracture — with the underlying bone treated at the same time.

Why see us about it

  • The fracture and the bone. A broken bone is treated, and the reason it broke is treated too, rather than left for later.
  • A cause worth finding. Blood tests look for treatable reasons for bone loss, not just the label.
  • A plan you can follow. Which medicine, for how long, and what happens when it stops.

Common questions

Does osteoporosis hurt?

Not in itself. The pain comes from fractures. A spinal compression fracture can cause sudden back pain, and several of them can cause a lasting stoop and ache.

Is osteopenia the same as osteoporosis?

No. Osteopenia means bone density is below average but not low enough to be called osteoporosis. Many people with osteopenia need no medicine, though some do, depending on their overall fracture risk.

Can exercise rebuild bone?

Weight-bearing and resistance exercise helps maintain bone and improves strength and balance, which prevents falls. On its own it rarely reverses osteoporosis, so it is used alongside treatment rather than instead of it.

How long will I need medicine?

Usually several years, then a review. Some people pause bisphosphonates after three to five years; denosumab is different and should not be stopped without another treatment in place.

Do men get osteoporosis?

Yes. Bone loss is slower in men and starts later, but around one in five men over 50 has a fracture because of it. Long-term steroids, low testosterone and heavy alcohol use raise the risk.

Do I need a referral?

No. Bring any previous bone density results, X-ray reports, and a list of your medicines, especially steroids.

Related conditions

Spinal compression fracture · Kyphosis · Scoliosis · Back pain · Hip pain · Wrist pain

Book a consultation

If you have broken a bone in a minor fall, mention it when you book. That one fact changes what gets checked.

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