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Causes of Knee Pain

  Watch the video to learn about the anatomy of the knee and about causes of joint pain

The most frequent cause of discomfort and chronic knee pain is arthritis. Arthritis is the leading cause of disability in the U.S. In fact, it’s estimated that 1 in 5 people in the United States have some form of arthritis. Two-thirds of the people who have been diagnosed with arthritis are under the age of 65.1

Learn more about the causes of knee pain:

  • Knee Damage Simulator
    Use this tool to simulate different conditions and injuries that affect the parts of your knee.

  • About Knee Arthritis
    Read more about the most common forms of arthritis that can cause debilitating knee pain: Osteoarthritis
    and Rheumatoid arthritis.

  • About Traumatic Knee Injuries
    Learn about the third most common cause of joint damage.

Next: View Knee Damage Simulator

1. Hootman J, Bolen J, Helmick C, Langmaid G. Prevalence of Doctor-Diagnosed Arthritis and Arthritis-Attributable Activity Limitation --- United States, 2003-2005. MMWR. 2006;55(40):1089-1092.


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