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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

    Walking to Ease Knee Pain

    It's a catch-22 when you have knee pain from osteoarthritis. It hurts, so you don't want to move. But if you exercise, it can eventually make your knees feel better. "I've gone a period of time when I haven’t moved a joint much and, when I first start, it's a little bit sore," says Denver physical therapist Eric Robertson, who has osteoarthritis. Robertson knows what it's like to be achy when he first starts moving. Your knee may hurt and ache, but it shouldn't keep you from doing your usual activities,...

    Read the Walking to Ease Knee Pain article > >

    WebMD Medical Reference from Healthwise

    Last Updated: September 09, 2014
    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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