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  1. Rheumatoid arthritis - Symptoms and causes - Mayo Clinic

    Apr 9, 2025 · When you have rheumatoid arthritis, your immune system sends antibodies to the synovium and causes inflammation. This causes pain and joint damage, especially in small …

  2. Rheumatoid Arthritis (RA): Symptoms, Stages & Treatment

    What is rheumatoid arthritis? Rheumatoid arthritis (RA) is a chronic (ongoing) autoimmune disease that causes pain, swelling and stiffness in the lining of your joints (synovium). It most …

  3. Rheumatoid arthritis - Wikipedia

    Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. [1] It typically results in warm, swollen, and painful joints. [1] Pain and stiffness often worsen …

  4. Rheumatoid Arthritis | Arthritis | CDC

    Jan 25, 2024 · Rheumatoid arthritis (RA) causes pain, swelling, and stiffness in the joints. There’s no cure for RA, but you can manage and treat it with medicines and lifestyle changes. It’s best …

  5. Rheumatoid Arthritis Resource Center - WebMD

    What Is Rheumatoid Arthritis? Learn all about rheumatoid arthritis, including the causes, symptoms, and treatment.

  6. Rheumatoid Arthritis - Johns Hopkins Medicine

    Rheumatoid arthritis (RA) is a long-term (chronic) disease that causes inflammation of the joints. The inflammation can be so severe that it affects how the joints and other parts of the body …

  7. What Is Rheumatoid Arthritis? Arthritis is a general term for inflammation of the joints. There are more than 100 different types of arthritis. Rheumatoid arthritis, or RA, is a chronic (long-term) …

  8. Rheumatoid Arthritis Resource Center: Symptoms, Treatments, Tips

    Healthline is your guide to better health & wellbeing while living with Rheumatoid Arthritis. Find information on RA symptoms, treatments, lifestyle tips and more.

  9. Rheumatoid Arthritis Symptoms, Causes, & Risk Factors | NIAMS

    Rheumatoid arthritis (RA) is a chronic (long-lasting) autoimmune disease that mostly affects joints. RA occurs when the immune system, which normally helps protect the body from infection and …

  10. Rheumatoid arthritis - World Health Organization (WHO)

    Jun 28, 2023 · Rheumatoid arthritis (RA) is a chronic disease that causes inflammation around the body and commonly presents with pain in the joints. Untreated, RA can cause severe damage …