Childhood arthritis is called juvenile arthritis. It can also be referred to as JRA,
juvenile rheumatoid arthritis,
juvenile idiopathic arthritis, JIA, juvenile chronic arthritis, and Still's disease. Actually, these names are somewhat misnomers. Juvenile rheumatoid arthritis and adult onset rheumatoid arthritis differ in some characteristics but the names indicate strict similarity. Juvenile chronic arthritis is a misnomer since juvenile arthritis is not always chronic.