A voluntary health agency covering all arthritis and related conditions.

Arthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a group of conditions involving damage to the joints of the body.

Rheumatoid Arthritis Rheumatoid arthritis affects 1.3 million Americans. Osteoarthritis 27 million Americans live with osteoarthritis. Juvenile Arthritis

Arthritis symptoms include pain, joint inflammation and swelling. Get the facts on arthritis types, causes, research information, statistics and diagnosis.

The Centers for Disease Control and Prevention's Arthritis Program web site. ... National Center for Chronic Disease Prevention and Health Promotion Division of Adult and Community ...