Understanding Arthritis

  • About Arthritis and Other Rheumatic Diseases

    Arthritis, itself a group of more than 100 different diseases, is one category of rheumatic diseases.

  • Arthritis

    Arthritis and other rheumatic diseases are common conditions that cause pain, swelling, and limited movement. They affect joints and connective tissues around the body. Millions of people in the U.S. have some form of arthritis. Arthritis means inflammation of a joint. A joint is where two or more bones meet. There are more than 100 different arthritis diseases. Rheumatic diseases include any condition that causes pain, stiffness, and swelling in joints, muscles, tendons, ligaments, or bones. Arthritis is usually chronic, which means that it is ongoing.

  • Arthritis and Other Rheumatic Diseases Statistics

    Rheumatic diseases are the leading cause of disability among people ages 65 and older.

  • Arthritis Diagnosis

    Diagnosing arthritis and other rheumatic diseases is often difficult, as many symptoms are similar among the different diseases.

  • Anatomy of a Joint

    Joints are the areas where two or more bones meet. Most joints are mobile, allowing the bones to move.

  • Understanding Joint Pain

    Sprained ankles and wrists, arthritic knees and hips and torn rotator cuffs all have one thing in common: They result in joint pain.