Diseases, Conditions and Tests
The RxList disease and condition listing contains explanations of many medical conditions and tests. Disease articles are written by U.S. Board Certified Physicians. To use the listing, browse the terms by selecting a letter.
Rheumatoid Arthritis is an autoimmune disease that causes chronic inflammation of the joints and other areas of the body. Rheumatoid arthritis is a chronic disease characterized by periods of disease flares and remissions. In rheumatoid arthritis, multiple joints are usually, but not always, affected in a symmetrical pattern. More »
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Explanations of Diseases, Conditions, and Tests
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