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What is rheumatoid arthritis?

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RA is a long-lasting disease that can affect joints in any part of the body, but most commonly involves the hands, wrists, and knees. With rheumatoid arthritis, the immune system mistakenly attacks the body's joints and causes the joint lining to swell. The inflammation then spreads to the surrounding tissues, and can eventually damage cartilage and bone. In more severe cases, RA can affect other areas of the body, such as the skin, eyes, and nerves.

From: Arthritis Pain Management WebMD Medical Reference

Reviewed by David Zelman on September 11, 2019

Medically Reviewed on 9/11/2019

SOURCES: 

Arthritis Foundation. 

CDC. 

FDA.

Reviewed by David Zelman on September 11, 2019

SOURCES: 

Arthritis Foundation. 

CDC. 

FDA.

Reviewed by David Zelman on September 11, 2019

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Are you more likely to get arthritis as you get older?

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