Find the latest news stories, overviews, research and more on Juvenile Rheumatoid Arthritis from MedlinePlus, the National Library of Medicine's consumer health site. Find the latest news stories, overviews, research and more on Juvenile Rheumatoid Arthritis from MedlinePlus, the National Library of Medicine's consumer health site. Arthritis is an inflammation of the joints that is characterized by swelling, heat, and pain. Juvenile arthritis, or JA, is the term used for all the types of arthritis that affect children. prevalent form of juvenile arthritis is juvenile rheumatoid arthritis, or JRA, affecting about the symptoms, signs, and treatment of juvenile rheumatoid arthritis in children Juvenile Rheumatoid Arthritis. What is Juvenile Rheumatoid Arthritis? Juvenile rheumatoid arthritis (JRA) is arthritis between juvenile and adult rheumatoid arthritis is that Juvenile Rheumatoid Arthritis FAQ. What Is Juvenile Rheumatoid Arthritis? Juvenile rheumatoid arthritis is arthritis that to be similar in many ways to adult rheumatoid arthritis Arthritis is an inflammation of the joints that is characterized by swelling, heat, and pain. Juvenile arthritis, or JA, is the term used for all the types of arthritis that affect children. prevalent form of juvenile arthritis is juvenile rheumatoid arthritis, or JRA, affecting about the symptoms, signs, and treatment of juvenile rheumatoid arthritis in children