By Valeria Mancuso Types of Autoimmune Diseases in Dogs The most common autoimmune diseases in dogs include, Immune-Mediated Polyarthritis (joint inflammation), Immune-Mediated Thrombocytopenia (platelet destruction), Keratoconjunctivitis Sicca (dry eye), Inflammatory brain disease (for toy breed dogs specifically), and Pemphigus Foliaceus (skin disease). Each disease can be caused by different things in different dogs. Causes There … Continued