What is rheumatoid arthritis (RA)?
Rheumatoid arthritis (RA) is a chronic condition that causes pain, swelling, and stiffness in the joints. Affecting about 1% of the population, it is one of the most common types of inflammatory arthritis.
Rheumatoid Arthritis
Rheumatoid arthritis is a long-term autoimmune disease. Although the reason why is not well understood, a variety of factors may be involved including genetics, hormones and environmental factors.
RA occurs when the body’s immune system attacks its own healthy tissues and cells. As a result, patients may experience fatigue in addition to joint pain, swelling and stiffness.