What should you know about Hologic bone densitometry?

DEXA, also called bone densitometry, uses low-dose X-rays to examine commonly assessed areas such as the hip and lower spine. The scan is quick and you remain still while the equipment records measurements. A Hologic machine is the manufacturer and device platform; the result still needs interpretation in the context of your age, sex, medical history and fracture history.

A result can support decisions about monitoring, lifestyle measures or medication, but it does not describe every aspect of bone quality and does not explain all pain. The clinician may compare future scans using the same site and technique.

Tell the imaging team if you may be pregnant, recently had a contrast examination, or have difficulty lying flat. Wear clothing without metal where possible and follow the centre's instructions about supplements or medicines. Bring information about previous fractures, family history and medicines that affect bone health.

Ask how the report will be explained and whether another assessment is needed. If medication is recommended, learn how [Bisphosphonate Therapy](/treatments/non-surgical-orthopedics/bisphosphonate-therapy/) fits with your result and health history.

Contact a clinician promptly after a low-impact fracture, new severe back pain, sudden loss of height or difficulty standing upright. These changes can signal a vertebral or other fracture and should not wait for a routine scan review.

Which bones were measured, and what do my results mean for me? Should I repeat the scan, change activities or start medication? How can I reduce fall and fracture risks at home?