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Juvenile rheumatoid arthritis (JRA), often referred to by doctors today as juvenile idiopathic arthritis (JIA), is a type of arthritis that causes joint inflammation and stiffness for more than six weeks in a child aged 16 or younger. It affects approximately 50,000 children in the United States.
Juvenile rheumatoid arthritis (JRA) is a common form of chronic arthritis in children. It is a long-term autoimmune condition characterized by stiffness and swelling in the joints.Most cases of JRA are mild, but severe cases may result in joint damage. JRA is different from adult rheumatoid arthritis, and the exact causes of this condition are unknown.Knowing the signs and symptoms of JRA is important for getting medical treatment before the condition progresses.t is a long-term autoimmune condition characterized by stiffness and swelling in the joints. Most cases of JRA are mild, but severe cases may result in joint damage. JRA is different from adult rheumatoid arthritis, and the exact causes of this condition are unknown.