Rheumatoid Arthritis (RA): Not Just a Joint Disease

Contributor: Qingping Yao, MD, PhD Rheumatoid Arthritis (RA) is an ongoing inflammatory autoimmune disease that primarily affects the small joints. In patients with an autoimmune disorder, the immune system can’t tell the difference between healthy body tissue and antigens. The result is an immune response that destroys normal body tissues. RA causes joint pain, pain … Read More