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.
WebMD Medical Reference from Healthwise
September 09, 2014
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