Rheumatoid Arthritis Health Center

Rheumatoid Arthritis Overview

Rheumatoid arthritis (RA) happens when your body's defenses – your immune system – targets your joint linings. RA affects joints on both sides of the body, such as both hands, both wrists, or both knees. This symmetry helps to set it apart from other types of arthritis. It can also affect the skin, eyes, lungs, heart, blood, or nerves.

What Are the Symptoms of Rheumatoid Arthritis?

Rheumatoid arthritis (RA) is long-term disease. Its symptoms can come and go, and it’s different for each person.

Some people have long periods when their disease isn’t active. They have few or no symptoms during this time. Others feel it for months at a time. Treatment helps.

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