Renal damage in rheumatoid arthritis

Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disease that is generally thought to be caused by genetic, infection and other factors that trigger the body's autoimmune response. Mainly manifested as bilateral symmetrical finger joint swelling and pain with morning stiffness, which can cause joint deformity and dysfunction for a long time. The main causes of death are infection, cardiovascular disease and kidney damage.