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  1. Arthritis - Overview and Types | NIAMS

    Arthritis is joint inflammation that can cause pain, redness, stiffness, or heat. Learn about the different types of arthritis.

  2. Arthritis diagnosis and treatment - Mayo Clinic Health System

    Jan 22, 2024 · The main symptoms of arthritis are joint pain and stiffness. Our experts diagnose, treat and manage your arthritis symptoms.

  3. Health Topics | NIAMS

    Jun 6, 2025 · Find information on diagnosis, treatment, and prevention for a range of health conditions related to arthritis, musculoskeletal, and skin diseases.

  4. Living With Arthritis: Health Information Basics for You and Your ...

    Jul 30, 2025 · When people talk about having arthritis, they are usually talking about problems with their joints. The problems can affect any joint in the body, including: hands; knees; hips; neck; and lower …

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

    Rheumatoid arthritis is an autoimmune disease that affects multiple joints, resulting in pain, swelling, and stiffness. Tiredness and fever may also be present.

  6. Rheumatoid Arthritis: Diagnosis, Treatment, and Steps to Take

    Having rheumatoid arthritis increases your risk of developing osteoporosis, particularly if you take corticosteroids. Osteoporosis is a bone disease that causes the bones to weaken and easily break. …

  7. Reactive Arthritis Symptoms, Causes, & Risk Factors | NIAMS

    Reactive arthritis is a form of spondyloarthritis, a group of arthritis conditions that typically involve the sacroiliac joints in the lower back, and entheses (places where tendons or ligaments attach to …

  8. Arthritis & Rheumatic Diseases - Overview & Types | NIAMS

    Jun 5, 2025 · Find information about more than 20 different arthritic diseases (those that affect the joints) and rheumatic diseases (which usually affect joints, tendons, ligaments, bones, and muscles).

  9. Artritis | Temas de salud | NIAMS

    Aprenda sobre la artritis, cómo se diagnostica y se trata, y las medidas que puede tomar para vivir con esta enfermedad.

  10. 骨性關節炎 (Osteoarthritis) | NIAMS

    Jun 26, 2024 · 哪些人會得骨性關節炎? 任何人都可患上骨關節炎,但隨著年齡的增長,患病的情況會更常見。相較於男性,女性患骨關節炎的可能性更大,尤其是在50 歲之後。 年紀較輕者也可患上骨關 …