Facts About Rheumatoid Arthritis Rheumatoid arthritis (RA) is a prevailing autoimmune disease that affects more than 20 million Americans each year. It tends to be bilateral and asymmetrical, which means it appears on both sides of your body. It is a chronic inflammatory polyarthritis condition, which means it upsets multiple (five or more) joints in the body and is often linked to joint deformities, especially in the hand and fingers. Image Source - webmd.com RA can be very serious, causing premature disability, compromised quality of life, and sometimes even death. According to the Centers for Disease Control (CDC), in 1997, rheumatoid arthritis accounted for 22 percent of all deaths due to arthritis and other rheumatic conditions. Unlike arthritis that is brought by old age, rheumatoid arthritis can affect you at any age, including young children. In fact, a 2007 CDC study estimates that among 294,000 children with arthritis or other rheumatic condition, there were at least 16,000 ...