You can use the FRAX (Fracture Risk Assessment Tool) to estimate your risk of fracture, whether or not you’ve had your bone mineral density (BMD) tested. Go to and click on “Calculation Tool.” 

Many doctors consider prescribing medication if your risk of a major fracture (a spine, arm, or hip fracture) is at least 20 percent—or your risk of a hip fracture, specifically, is at least 3 percent—over the next 10 years.