Arthritis Foundation ... Rheumatoid Arthritis Rheumatoid arthritis affects 1.3 million Americans. Osteoarthritis
Arthritis (from Greek arthro-, joint + -itis, inflammation; plural: arthritides) is a group of conditions involving damage to the joints of the body.
Arthritis.com is your resource for arthritis information online. Living with arthritis can be a challenge. Find out about osteoarthritis, rheumatoid arthritis, and the many ...