What is Systemic Juvenile Idiopathic Arthritis?
SJIA is a rare form of arthritis that affects children aged 2 years and older. The “S” in “SJIA” stands for “systemic,” which means it is a disease that affects the whole body, causing fever, a salmon-pink rash, swelling and pain in the joints. Sometimes the fever and rash symptoms appear first, and the joint pain of arthritis happens later.
SJIA is different from other forms of JIA
Systemic JIA is the most rare of the various types of juvenile idiopathic arthritis (JIA). It’s different because the signs and symptoms of SJIA, like fever and rash, affect the whole body and not just the joints. Your child’s doctor will be able to give you more information about how SJIA differs from other forms of JIA like oligoarticular JIA and polyarticular JIA.