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  1. 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 …

  2. 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 …

  3. 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 …

  4. Rheumatoid Arthritis: Signs, Causes, Treatments, and Care

    May 8, 2024 · Rheumatoid arthritis (RA) is an autoimmune arthritis where your body’s immune system attacks its own tissue, including joints and internal organs, causing pain and swelling.

  5. 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 …

  6. Rheumatoid Arthritis: Types, Causes, Symptoms & Treatments

    Apr 19, 2023 · Rheumatoid arthritis (RA) is a chronic autoimmune disease that mostly affects joints. Commonly affected joints are the hands, knees or ankles. Usually both sides are …

  7. 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 …

  8. 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 …

  9. Rheumatoid Arthritis Diagnosis: Tests, Criteria, and More

    Jul 22, 2025 · Diagnosing rheumatoid arthritis (RA) involves a few steps, including a review of symptoms, blood tests, and imaging tests. Learn more here.

  10. 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 …