A bone density test uses X-rays to check for osteoporosis, a condition that makes bones weak and thin, increasing the risk of fractures. The test is painless and quick, usually taking only 10 to 15 minutes. It measures the density or thickness of bones, typically examining the spine, hip, and forearm, which are the bones most likely to break in osteoporosis. The test results show the amount of calcium and other minerals in the bones—the more minerals, the stronger the bones. Anyone can get osteoporosis, but it is more common in older women. Your doctor may recommend a bone density test, especially if you are taking medication that can cause bone loss. The test has two types: Central DXA, which is more accurate and expensive, usually examines the spine and hip bones, and Peripheral tests, which are cheaper and measure bone density in the wrist, finger, and heel. After the test, you will receive two scores: T-score and Z-score. The T-score compares your bone density with that of a healthy young adult, while the Z-score compares it with people of your age, gender, and size.