Autoimmune diseases arise from an overactive immune response of the body against substances and tissues normally present in the body. In other words, the body actually attacks its own cells. The immune system mistakes some part of the body as a pathogen and attacks it. The treatment of autoimmune diseases is typically with immunosuppression -- medication which decreases the immune response. This book presents current research in the study of autoimmune disorders with a focus on autoimmune liver diseases; Graves hyperthyroidism; system lupus erythematosus; Behcet's disease; and Sjogren's syndrome.