what is rheumatoid arthritis

What is Rheumatoid Arthritis (RA)? Rheumatoid arthritis, also known as RA is an autoimmune, inflammatory disorder meaning the immune system targets healthy cells within your body. This can be a mistake and causes swelling (painful swelling) in the affected areas of the body. rheumatoid arthritis mostly affects joints, often affecting multiple joints at one time. rheumatoid … Read more