Juvenile Arthritis (JA) Directory

Juvenile arthritis (JA) is any type of arthritis that occurs in children under age 18. It is a long-term (chronic) condition that involves swollen, painful joints. Juvenile arthritis is an autoimmune disease, which means it occurs when the body's immune system mistakenly attacks healthy cells and tissues. There are several types of juvenile arthritis. The most common symptoms are joint swelling, warmth and redness around a joint, and problems with bone development and growth. Often, a limp is the first sign that a child has juvenile arthritis. Follow the links below to find WebMD's comprehensive coverage about how juvenile arthritis develops, what the symptoms are, how to treat it, and much more.

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