RA mainly attacks the joints, usually many joints at once. Rheumatoid arthritis is an autoimmune inflammatory disease pathologically characterized primarily by synovitis. Joint destruction, which is associated with prolonged arthritis, progresses soon after the onset of disease. The deformation of affected joints is irreversible and causes physical dysfunction. Rheumatic disease is an umbrella term that refers to arthritis and several other conditions that affect the joints, tendons, muscle, ligaments, bones, and muscles (arthritis refers to disorders that mainly affect the joints). It...