By the way, doctor: How often do I need a bone density test?
Q. I'm a healthy 65-year-old woman and just had my first bone density test. How often do I need to have it repeated?
A. Most doctors and organizations recommend that healthy women undergo bone mineral density (BMD) testing at age 65. There's good scientific evidence that BMD is linked to risk of fracture. The most widely used bone mineral density test is dual-energy x-ray absorptiometry, or DXA (see photograph).