Polyarticular juvenile idiopathic arthritis (JIA), also known as polyarthritis, affects 5 or more joints during the first 6 months of symptoms. This type of JIA is more severe than oligoarticular JIA, because it affects more joints and tends to get worse over time.
Polyarticular JIA is divided into two groups.
Symptoms of polyarticular JIA usually affect the same joints on both sides of the body, such as the joints of both hands. A child with polyarthritis may also develop:
|Primary Medical Reviewer||Susan C. Kim, MD - Pediatrics|
|Specialist Medical Reviewer||John Pope, MD - Pediatrics|
|Last Revised||June 5, 2012|
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