A DEXA scan, or Dual-Energy X-ray Absorptiometry scan, is a medical imaging test used to measure bone density. It helps assess the risk of osteoporosis and fractures by providing detailed information about bone health. The scan uses low-dose X-rays to create images of the bones, typically focusing on the spine, hip, and sometimes the forearm. The procedure is quick and non-invasive, usually taking about 10 to 30 minutes. Patients lie on a table while a scanning arm passes over them. Results are compared to standard values to determine bone density and overall skeletal health, guiding treatment options if necessary.