What is rheumatoid arthritis? The most common type of arthritis is rheumatoid arthritis. It affects the joints, causing swelling and pain, especially with movement. Rheumatoid arthritis most commonly affects the lining of the joints, specifically the wrists, hands, feet, and spine. The knees, neck, and shoulders can also be affected, though this is less common. Rheumatoid arthritis is now known to be an autoimmune disease. It is caused by an oversight on the part of our immune system, and currently, no cure has been identified. RA is distinguished by systemic (all-over) inflammation, which has implications for numerous body systems. Uncontrolled inflammation brought on by RA can harm the surfaces of joints and nearby structures, resulting in permanent joint deformities in cases of high disease activity. As a result, systemic inflammation can affect other body systems, particularly the cardiovascular system. Learn more how physiotherapy can help with rheumatoid arthritis.