What is osteoporosis?
Osteoporosis is a condition in which our bones become very fragile and are more likely to break.
Strong bones depend on bone density. Bone loss begins in early adult life and continues as we age. As we age, we lose bone so it becomes less dense.
This fact sheet was last updated on 12-21-2005.

The information provided in this website was supported by Grant/Cooperative Agreement Number U59/CCU522742-02 from the Centers for Disease
Control and Prevention (CDC).