Osteoporosis: Early Signs, Risk Factors and Bone Density Scans

What osteoporosis is and why it can go unnoticed

Osteoporosis is a condition in which bones become less strong and more likely to fracture. Bone is living tissue that is continually renewed, but when bone is lost faster than it is replaced, density and strength can fall. Osteoporosis often causes no symptoms until a fracture occurs, so a person may not know they have it until a relatively minor fall causes a break.

A fracture can occur in the wrist, hip or spine, and spinal fractures may sometimes cause sudden back pain, loss of height or a change in posture. Not everyone with low bone density has osteoporosis, and not everyone with osteoporosis will experience a fracture. Assessment considers bone density together with age, medical history and other factors that affect fracture risk.

Risk factors and who should discuss assessment

Risk can increase with age, menopause, early menopause, low body weight, a previous fragility fracture, a family history of hip fracture, smoking, heavy alcohol use, limited weight-bearing activity and certain long-term medicines such as corticosteroids. Some medical conditions affect bone health, including conditions that influence hormone levels, nutrient absorption or inflammation.

Having a risk factor does not prove that you have osteoporosis. a doctor can review your history and may use a fracture-risk assessment to decide whether a DEXA scan or other investigation is appropriate. The timing of assessment depends on individual circumstances; broad screening is not necessarily useful for everyone.

What a DEXA scan measures

DEXA, sometimes written DXA, stands for dual-energy X-ray absorptiometry. It uses a low dose of X-rays to measure bone mineral density, commonly at the hip and spine. It is different from an ordinary X-ray, which can show a fracture but is not designed to measure bone density accurately.

The result is usually reported using a T-score in many adults, comparing bone density with a healthy young adult reference. A lower score indicates lower bone density, but the result needs to be interpreted with age, fracture history and other risk factors. A DEXA result is not a full assessment of every aspect of bone strength, and it does not by itself determine the right treatment.

Preparing for and attending a DEXA scan

A DEXA scan is generally quick and non-invasive. You usually lie on a table while the scanner arm moves over the area being measured. You need to stay still, but the examination is not usually painful. The provider may ask about recent contrast examinations, nuclear medicine tests, pregnancy or supplements and medicines that could affect the appointment instructions.

Follow the instructions provided for your examination. Tell the team if you are pregnant or might be pregnant, have had recent imaging involving contrast, or have difficulty lying flat. Ask how and when the report will be shared and who can explain what the result means for you.

Reducing fracture risk and protecting bone health

Depending on your circumstances, bone-health advice may include regular weight-bearing and muscle-strengthening activity, adequate calcium and vitamin D, stopping smoking, moderating alcohol and reducing fall risks at home. Balance training and reviewing medicines that cause dizziness may be helpful for some people. If you have a diagnosed condition or take medicines affecting bones, ask our doctor what applies to you.

Some people benefit from prescribed medication to reduce fracture risk. The choice depends on the person's risk, other health conditions, preferences and the benefits and possible side effects of treatment. Supplements are not a substitute for assessment where risk is high, and taking more is not always better. Seek advice before starting high-dose supplements or changing prescribed treatment.

When back pain or a fracture needs assessment

Sudden back pain after a minor fall, a new loss of height, a stooped posture or a suspected fracture should be discussed with a healthcare professional. Severe pain, an obvious deformity, inability to stand or walk, or other worrying symptoms may need urgent assessment. Do not assume that pain is simply due to age or posture.

PrivateScans offers DEXA scanning as part of its diagnostic services. The pre-scan GP consultation helps review symptoms and risk factors and establish whether imaging is appropriate. The initial £25 consultation is deducted from the total scan cost if you proceed. The scan price includes the reporting, digital access to images and report, post-scan GP consultation and Patient Care Team support.

Early signs, fractures and when to ask about bone density

Osteoporosis is often described as a silent condition because low bone density usually does not cause pain by itself. A fracture may be the first sign. Warning clues can include a fracture after a minor fall, unexplained loss of height, a change in posture or sudden back pain that may reflect a spinal fracture. These signs do not prove osteoporosis, but they warrant medical assessment.

Risk factors include increasing age, menopause, early menopause, low body weight, family history of hip fracture, smoking, heavy alcohol use, some long-term medicines and certain medical conditions. a doctor may assess risk using your history and a fracture-risk tool before deciding whether a DEXA scan is useful. Not everyone needs a scan, and the timing depends on individual circumstances.

DEXA measures bone mineral density, usually at the hip and spine. The result helps inform fracture risk but should be interpreted alongside age, previous fractures and other health factors. If osteoporosis is diagnosed, the plan may include lifestyle changes, falls prevention and prescribed treatment. Ask our doctor how the result affects your individual risk and what follow-up is recommended.