Juvenile arthritis isn’t a disease itself—it’s a group of diseases.
Arthritis is a rheumatic disease, meaning it affects the muscles and joints (the place where two or more bones meet). When someone has arthritis, his joints become inflamed, leading to pain, stiffness, swelling, or loss of motion.
Juvenile arthritis (also called pediatric arthritis or pediatric rheumatic disease) occurs when a child under 16 develops arthritis. Nearly 300,000 children in the US have some form of this disease.
While juvenile arthritis can be uncomfortable and cause disability, there is good news: Most kids with juvenile arthritis can lead normal lives.