Joint pain/swelling: The mayo clinic has a a good patient information article: http://www.Mayoclinic.Com/health/juvenile-rheumatoid-arthritis/ds00018.
Answered 1/30/2012
6.1k views
Immune dysfunction!: Jra (also called jia) for juvenille idiopathic arthritis is a disease of unknown etiology. There are many theories for why it happens, many believe there is a virus responsible. The damage to the joints, pain and stiffness is due to an inappropriate immune response which results in the immune system attacking tissues of the host (patient). Rheumatologists can provide appropriate DX and rx.
Answered 6/10/2014
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