Rheumatoid Arthritis (RA) : Causes
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Causes could include:
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No known cause
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The cause of RA is unknown. It is considered autoimmune disease. The body's immune system normally fights off foreign substances, like viruses. But in an autoimmune disease, the immune system confuses healthy tissue for foreign substances. As a re...
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Rheumatoid Arthritis:: The second form occurs in boys aged eight years and older, and involves the larger joints, such as those of the hips and legs. The first is from one to three years of age, and the second, from eight to 12 years.
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Rheumatoid Arthritis:: While these findings suggest inflammatory arthritis, they are not specific to RA. A long, thin needle can be inserted into a synovial joint to withdraw a sample of the synovial fluid for examination.
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Rheumatoid Arthritis:: However, not all the genes associated with RA have been discovered, and more research is needed.
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