osteoporosis blood test explained

Overview

Osteoporosis is a condition where bones become weak, thin, and more likely to break. It develops slowly over many years, often without any warning signs.

Yes, it is very common. Millions of people worldwide have osteoporosis, especially as they get older.

It is most common in women after menopause, but men and younger people can also develop it, particularly if they have other health conditions or take certain medications.

Symptoms

Common symptoms

• Osteoporosis usually has no symptoms in the early stages.
• Later, you might notice a stooped posture or lose height over time.
• You may have back pain from a broken or collapsed bone in the spine.

Symptoms in children

• Osteoporosis in children is rare and usually caused by an underlying medical condition or medication.
• Symptoms can include bone pain, fractures from minor injuries, and difficulty walking.

Symptoms in older adults

• A fracture that happens after a minor fall or bump.
• Height loss of more than 2-3 centimetres over a few years.
• A curved upper back (sometimes called a 'dowager's hump').

Causes

Main causes

• Age-related bone loss – bones naturally become thinner as we get older.
• Hormone changes – low oestrogen in women after menopause, or low testosterone in men, can speed up bone loss.

Risk factors

• Family history of osteoporosis or hip fracture.
• Low body weight or a small frame.
• Smoking or drinking too much alcohol.
• Long-term use of certain medicines, like corticosteroid tablets.
• Low intake of calcium and vitamin D over many years.

When to see a doctor

See a doctor urgently if:

• If you break a bone after a minor fall or bump.
• If you have sudden severe back pain that does not improve.

Book a routine appointment if:

• If you are over 50 and have broken a bone after a minor injury.
• If you have risk factors for osteoporosis and want to check your bone health.
• If you are a woman over 65 or a man over 70, it is a good idea to talk to your doctor about screening.

Diagnosis

Osteoporosis is often diagnosed with a bone density scan called DXA (dual-energy X-ray absorptiometry). Blood tests are not used to diagnose osteoporosis directly, but they help rule out other conditions that can weaken bones.

Tests that may be done

• Blood tests to check calcium, vitamin D, kidney function, thyroid hormones, and sometimes markers of bone turnover.
• DXA scan to measure bone density at the hip and spine.

What to expect at your appointment

A blood test is quick – a small sample is taken from your arm. Results usually come back in a few days. Your doctor will use these results along with your history and a DXA scan to give you a clear picture of your bone health.

Treatment

Treatment aims to strengthen your bones and prevent fractures. It often includes lifestyle changes, adequate calcium and vitamin D, and sometimes medication.

Self-care at home

• Do weight-bearing exercises like walking, jogging, or dancing to help keep bones strong.
• Stop smoking and limit alcohol to no more than one or two drinks per day.
• Eat a balanced diet rich in calcium and vitamin D – think dairy products, green leafy vegetables, and fortified foods.
• Take steps to prevent falls – remove loose rugs, wear sturdy shoes, and keep your home well-lit.

Medical treatments

If your bones are very thin or you have already had a fracture, your doctor may recommend a medication that helps slow bone loss or build new bone. These treatments are usually taken as a tablet, injection, or infusion. Your doctor will explain which option is best for you.

When is surgery considered?

Surgery is not usually needed for osteoporosis itself. However, if you break a hip or other bone, surgery may be necessary to repair the fracture.

Living with this condition

Living with osteoporosis means being mindful of your bone health every day. Focus on activities that are safe and avoid high-impact moves that could cause a fall.

Lifestyle tips

• Talk to a physiotherapist about exercises that improve balance and strengthen muscles.
• Make your home safer – install grab bars in the bathroom, use a nightlight, and keep walkways clear.
• Wear comfortable, non-slip footwear especially outdoors.

Diet and exercise

Eat plenty of calcium‑rich foods like milk, yoghurt, cheese, and broccoli. Get vitamin D from sunlight (short periods, not burning), from foods like oily fish and eggs, or from a supplement if advised. Weight‑bearing and resistance exercises (like lifting light weights) help keep bones dense.

Mental health and emotional wellbeing

It is normal to feel worried about falls or fractures. Some people feel anxious or less independent. Talking to a counsellor or joining a support group can help you cope.

Prevention

You may not be able to prevent osteoporosis entirely, but you can lower your risk by eating a bone‑healthy diet, getting regular weight‑bearing exercise, not smoking, and limiting alcohol. This is important at every age, but especially in your youth and early adulthood when you are building peak bone mass.

Screening programmes

If you are at higher risk (for example, over 65 or with a family history), your doctor may suggest a bone density scan. This helps catch problems early so you can take action.

Complications

If left untreated

• Fractures of the hip, wrist, or spine – even from a low‑impact fall.
• Chronic back pain from collapsed spinal bones.
• Loss of height and a curved upper back.
• Reduced mobility and independence.

Long-term outlook

With early detection and proper care, most people with osteoporosis can lead full, active lives and reduce their risk of fractures. Bone‑building treatments and lifestyle changes can make a real difference.

Find support

International organisations

• International Osteoporosis Foundation

Local organisations

• National Osteoporosis Foundation (USA) · United States
• Royal Osteoporosis Society (UK) · United Kingdom

Helplines

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.