What can cause similar symptoms of jia/jra?

Many things..: Many things, but most are inflammatory, since the tests for inflammation will also be high! rheumatic fever; lyme disease. These are two post-infectious issues. You need to see a rheumatologist if possible, and even better, if near a major university medical center, one of the handful or pediatric rheumatologists. Most children can be remiited with jia!

Other conditions: JIA causes joint pain and swelling. Other conditions that can cause joint pain and swelling include Lyme disease, lupus, and vasculitis. Pain syndromes such as fibromyalgia can cause joint pain.