Lupus is a disease where the body's defense system attacks healthy cells and tissues, causing damage to many parts of the body. Learn more about this disease.| National Institute of Arthritis and Musculoskeletal and Skin Diseases
Back pain is one of the most common medical problems in the United States. It can range from a dull, constant ache to sudden, sharp pain that makes it hard to move.| National Institute of Arthritis and Musculoskeletal and Skin Diseases
What is rheumatoid arthritis? It is a disease that affects multiple joints, resulting in pain, swelling, and stiffness. Tiredness and fever may also be present.| National Institute of Arthritis and Musculoskeletal and Skin Diseases