Provide a valuable resource to your clients or customers by linking to this resource page. Just place the following link on your website.
A bone density scanner is a medical imaging device used to measure bone mineral density. The most common type is a DXA or DEXA scanner, which uses low-dose X-rays to estimate how much mineral is in certain bones. Testing is often done at the hip, spine, or forearm. The results help assess bone strength and fracture risk.
read more about bone density scanner ...A bone density scanner is used to check for low bone density, osteopenia, and osteoporosis. It can help estimate a person’s risk of breaking a bone. Clinicians also use bone density results to guide treatment decisions and monitor response to osteoporosis therapy. The test is most often recommended for people with age-related risk, fracture history, long-term steroid use, or other bone-loss risks.
A DXA scanner sends two low-dose X-ray beams through the bone. The machine measures how much of the beam passes through and uses that data to estimate bone mineral density. Denser bones absorb more X-ray energy than thinner bones. The scan is noninvasive and usually does not require needles, sedation, or recovery time.
The patient lies on a padded table while the scanner arm passes over the body. The technologist positions the hip, spine, or other scan area so the machine can capture accurate measurements. The patient needs to stay still during the scan, but the test is usually quick. Metal objects or recent contrast imaging can affect results, so patients should follow preparation instructions.
Bone density results often include a T-score and sometimes a Z-score. A T-score compares bone density with that of a healthy young adult, while a Z-score compares it with people of similar age and body size. The radiation dose from DXA is low, but pregnant patients should tell the imaging team before testing. Results should be reviewed with a clinician instead of interpreted alone.
Yes, in most clinical settings, a bone density scanner refers to a DXA or DEXA scanner used to measure bone mineral density.
No. The scan is noninvasive and painless. The patient lies still while the scanner captures images and measurements.
It can help diagnose osteoporosis by measuring bone mineral density and producing scores used in diagnosis. A clinician also considers fracture history and other risk factors.
The scan is usually quick and often takes only several minutes, though appointment time can vary by facility and body areas scanned.
Bone Density Scan: MedlinePlus Medical Test. MedlinePlus. https://medlineplus.gov/lab-tests/bone-density-scan/. Date Accessed June 15, 2026.
Bone Density Scan (DEXA or DXA). RadiologyInfo.org. https://www.radiologyinfo.org/en/info/dexa. Date Accessed June 15, 2026.
Bone density test (DXA/DEXA scan). Mayo Clinic. https://www.mayoclinic.org/tests-procedures/bone-density-test/about/pac-20385273. Date Accessed June 15, 2026.
Bone Mineral Density Tests: What the Numbers Mean. National Institute of Arthritis and Musculoskeletal and Skin Diseases. https://www.niams.nih.gov/health-topics/bone-mineral-density-tests-what-numbers-mean. Date Accessed June 15, 2026.
Osteoporosis: Diagnosis, Treatment, and Steps to Take. National Institute of Arthritis and Musculoskeletal and Skin Diseases. https://www.niams.nih.gov/health-topics/osteoporosis/diagnosis-treatment-and-steps-to-take. Date Accessed June 15, 2026.