The bone disease osteoporosis is caused by more bone calcium being resorbed than being deposited. This imbalance results in a progressive loss of bone density and a thinning and weakening of bone tissue. Osteoporotic bones are more porous and therefore more vulnerable to fracture.
Reviewed By: Diane M. Horowitz, MD, Rheumatology and Internal Medicine, Northwell Health, Great Neck, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.