human
I've been told that I need a bone density scan. What is this scan and why is it important?
assistant
A bone density scan is an X-ray of your bones to check for any signs of osteoporosis, a condition where the bones become weak and brittle. Osteoporosis can cause fractures, so it's important to diagnose it early on so you can take steps to reduce your risk. The test measures the amount of calcium in your bones and compares them to your age and gender. If the results are abnormal, then further tests may be recommended.