Rheumatology is a Subspeciality of Internal Medicine. Which Devoted to the Diagnosis & Treatement of Musculoskeletal Disease and Systemic Auto Immune Conditions. Rheumatologist treat arthritis, Autoimmune Diseases. There are more then 200 types of Rheumatological Diseases including RA, SLE, Vasculitis, Gout, Osteoarthritis, Systemic Sclerosis, Sarcoidosis etc..