Rheumatoid arthritis is an inflammatory condition that affects an estimated 2 million Americans. It typically occurs in the hands and feet, resulting in swelling, pain and joint deformities. Rheumatoid arthritis is an autoimmune disease (a malfunction in the immune system that causes the body to attack cells), which affects the synovium, the thin membrane that surrounds the joints.

Want to Keep Reading?

Continue reading with a Health Confidential membership.

Sign up now Already have an account? Sign in