- Rheumatoid arthritis - Symptoms and causes - Mayo Clinic
Rheumatoid arthritis is an ongoing, called chronic, condition that causes pain, swelling and irritation, called inflammation, in the joints But it also can damage other parts of the body These may include the skin, eyes, lungs, heart and blood vessels Rheumatoid arthritis happens when the immune system attacks its own body's tissues by mistake
- Rheumatoid Arthritis: Causes, Symptoms, Treatments and More
Rheumatoid arthritis (RA) causes joint inflammation and pain It happens when the immune system doesn’t work properly and attacks the lining of the joints, called the synovium The disease commonly affects the hands, knees or ankles, and usually the same joint on both sides of the body, such as both hands or both knees
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