URL of this page: http://www.nlm.nih.gov/medlineplus/ency/imagepages/17156.htm

Osteoporosis

Osteoporosis

Overview

The bone disease osteoporosis is caused by more bone cells being resorbed than being deposited. This imbalance results in a progressive loss of bone density and a thinning of bone tissue. Osteoporotic bones are more porous and therefore more vulnerable to fracture.

Update Date 5/5/2011