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  1. Rheumatoid arthritis - Symptoms and causes - Mayo Clinic

    Apr 9, 2025 · Rheumatoid arthritis can cause joint pain and swelling. As the tissue that lines the joints, called synovial membrane, becomes inflamed and gets thicker, fluid builds up. As a result, joints can …

  2. Rheumatoid Arthritis: Causes, Symptoms, Treatments and More

    Learn more about RA and how to treat it. Updated Oct, 15, 2021. Rheumatoid arthritis (RA) causes joint inflammation and pain. It happens when the immune system doesn’t work properly and attacks the …

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

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

  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 to …

  5. 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 to the joints …

  6. Rheumatoid Arthritis - RA - Center: Symptoms, Pain Relief, Causes ...

    Learn all about rheumatoid arthritis, including the causes, symptoms, and treatment. It's sometimes hard to tell whether you have RA or something else. A lot of other conditions share similar...

  7. Rheumatoid Arthritis: Feeling, Early Stages, Treatment

    Sep 4, 2025 · Rheumatoid arthritis (RA) requires a multidisciplinary approach to treatment. Learn how to reduce inflammation with early or advanced RA.

  8. What Is Rheumatoid Arthritis (RA)? | Rheum for More

    Jan 3, 2026 · RA is an autoimmune disease, and the most common type of autoimmune arthritis. Around 1.5 million people in the US have RA, and nearly 3 times as many women have the disease as men.

  9. Rheumatoid Arthritis - Harvard Health

    Apr 30, 2024 · RA can be painful and interfere with your ability to carry out daily activities. There is no cure for RA, but treatments such as medication, physical therapy, lifestyle changes, and surgery can …

  10. 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 disease, …