Juvenile rheumatoid arthritis is part of a wider systemic condition known as juvenile idiopathic arthritis (JIA). This general term of arthritic conditions affects children before the age of 16 with symptoms that last for 6 weeks or longer.
One of the key symptoms can be a rash that may look pink or purple. It typically affects the trunk, arms, and legs, but not the face. It usually occurs alongside a fever.