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Osteoarthritis - Cause

Osteoarthritis occurs when changes in cartilage cause the cartilage to break down faster than the body can produce it. When cartilage breaks down, the bones rub together and cause damage and pain. Experts don't know why this happens. But things like aging, joint injury, being overweight, and genetics may increase your risk.

In some cases, arthritis is caused by other conditions that damage cartilage.

Recommended Related to Osteoarthritis

Joint Replacement: Risks vs. Benefits

After a skiing injury 30 years ago, Bert Pepper, MD, got osteoarthritis in his left knee. "I stopped skiing and gave up tennis, running, and other sports that are tough on the knee," he says. "I turned to speed-walking to stay fit, but the knee kept me from walking at a good pace." As his pain got worse and walking became harder, he looked into having a knee replacement. It's not a decision to make lightly, says Pepper, who is a psychiatrist. "It's a major life event. You have to be prepared to...

Read the Joint Replacement: Risks vs. Benefits article > >

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WebMD Medical Reference from Healthwise

Last Updated: April 09, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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