What should you know about DEXA scan Radiopaedia information?

DEXA uses two X-ray energies to estimate bone mineral density, usually at the hip and lower spine. The result is compared with reference values and considered with factors such as age, menopausal status, medicines, previous fractures, and other health conditions. A low reading can indicate weaker bone, but it does not explain the cause on its own or predict exactly what will happen to one person.

Premature Ovarian Insufficiency, prolonged steroid treatment, low body weight, and some illnesses can influence bone health. Your clinician may combine the scan with blood tests, an examination, or a review of falls and fractures. The name of the test may appear differently across imaging resources, but the practical questions remain the same: what was measured and what action follows?

Bring details of medicines, supplements, previous fractures, and orthopaedic surgery. Tell the team about metal implants, recent contrast imaging, or possible pregnancy. Wear clothing that allows comfortable positioning and follow the centre’s instructions. After the scan, keep the report and ask the requesting clinician to explain the findings rather than interpreting an isolated number without context.

Contact the imaging centre before the appointment if you may be pregnant or cannot lie still because of pain or limited movement. Seek prompt medical care for a new severe injury, sudden severe back pain after a minor movement, marked weakness, or difficulty breathing; a DEXA scan is not an emergency assessment for these symptoms. Arrange follow-up for an unexpected report so the cause and next steps can be considered.

Ask what the report measures, whether the hip and spine readings agree, and which medical factors may have changed the result. Ask when repeat assessment is useful and what practical steps can protect your bones now.