This chart illustrates in detail the main joints affected by osteoarthritis (OA) and rheumatoid arthritis (RA)—the hand and wrist, hip, and knee. Illustrations show bone spurs, narrowing of joint space, erosion of cartilage, and swelling. The chart also points out on human figures the other areas affected by OA and RA. It describes these common forms of arthritis and other types of arthritic diseases such as fibromyalgia, gout, juvenile rheumatoid arthritis, systemic lupus erythematosus, bursitis, and tendonitis. It also lists common symptoms of arthritis.