Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disorder that may affect many ... Although the cause of rheumatoid arthritis is unknown Patient Discussions: Rheumatoid Arthritis - Early Symptoms ... Symptoms and signs of rheumatoid arthritis include pain, inflammation, morning stiffness The primary NIH organization for research on Rheumatoid Arthritis is the National Institute of Arthritis and Musculoskeletal and Skin Diseases Rheumatoid arthritis is an inflammatory condition of joints and is usually slow in onset. It involves more than one joint at a time. Learn more about Remicade, a medication for rheumatoid arthritis. ... The symptoms of rheumatoid arthritis interfere with work for many people