Rheumatoid Arthritis can start to develop in adults younger than 40 years of age and may not produce visible symptoms.
American adults are currently affected by rheumatoid arthritis.
of those affected remain undiagnosed.
Rheumatoid arthritis (RA) is an inflammatory disease in which your immune system starts attacking your joint tissues, resulting in pain, swelling, stiffness, and loss of function in the joints. If left untreated, 20 – 30% of patients become so severely debilitated within the first 3 years following initial diagnosis that they become permanently disabled.