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Juvenile Idiopathic Arthritis - Cause

The cause of juvenile idiopathic arthritis (JIA) isn't well understood. Most experts believe it is caused by a combination of things, including:

  • An immune system that is too active and attacks joint tissues.
  • Viruses or other infections that cause the immune system to attack joint tissues.
  • Having certain genes that make the immune system more likely to attack joint tissues.
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WebMD Medical Reference from Healthwise

Last Updated: June 05, 2012
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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