What is a Bone Mineral Density Test?
Bone mineral density tests measure the solidness and mass (bone density) in the spine, hip, and/or wrist (the most common sites of fractures due to osteoporosis). Some bone mineral density tests measure bone in the heel or hand. These tests are performed like x-ray films, and they are the only reliable way to determine loss of bone mass. They are painless, noninvasive, and safe.