Arthritis - Definition

Arthritis means inflammation of a joint. There are more than one hundred different forms of arthritis. They are similar to each other in the symptoms they produce, which includes sore, stiff, inflamed, and painful joints. Beyond these common symptoms, the various forms of arthritis are quite different from each other. Most forms of arthritis can be subdivided into three major categories: rheumatoid (pronounced ROO-muh-toid) arthritis, osteoarthritis (pronounced OSS-tee-o-ar-THRIE-tis), and gout.

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