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What Is Osteoporosis?

By Carol & Richard Eustice, About.com Guide

About.com Health's Disease and Condition content is reviewed by the Medical Review Board

Definition: Osteoporosis is a condition which is characterized by loss of bone density, resulting in brittle bones which are subject to fracture. There are several risk factors associated with osteoporosis.

  • Osteoporosis Screening Quiz
  • Osteoporosis Facts & Figures From NIH:

  • Fact: Osteoporosis is a major public health threat for 44 million Americans, 68% of whom are women.
  • Fact: Osteoporosis can strike at any age.
  • Fact: In the U.S. today, 10 million people already have osteoporosis and 34 million more have low bone mass.
  • Fact: One out of every two women and one in four men over 50 will have an osteoporosis-related fracture in their lifetime.
  • Fact: More than 2 million American men suffer from osteoporosis, and millions more are at risk. Each year, 80,000 men have a hip fracture and one-third of these men die within a year.

  • Fact: Estimated national direct expenditures for osteoporosis and related fractures total $14 billion each year.
  • Osteoporosis is also responsible for more than 1.5 million U.S. fractures annually, including:

  • 300,000 hip fractures
  • 700,000 vertebral (spine) fractures
  • 250,000 wrist fractures
  • more than 300,000 fractures at other sites
  • Healthy habits and other actions can help prevent and/or treat osteoporosis. Medications used for preventing and treating osteoporosis include:

  • Fosamax (alendronate)
  • Actonel (risedronate)
  • Boniva (ibandronate)
  • Didronel (etidronate)
  • Evista (raloxifene)
  • Miacalcin (calcitonin)
  • Forteo (teriparatide)
  • estrogen/hormone therapy
  • Also Known As: brittle bones, thin bones
    Common Misspellings: osteoporosus, osteopoorosis
    Examples:
    My doctor told me to take calcium supplements daily to help prevent osteoporosis.

    Source: Osteoporosis Overview, The NIH Osteoporosis and Related Bone Diseases ~ National Resource Center, Rev. 5/2006

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