Some autoimmune bullous disorders are not uncommon among elderly people. We reaported 2 cases of autoimmune bullous disorders of elderly people with complications. Case 1 was a 64 year-old man with pemphigus vulgaris. He was complicated with acquired hemophilia A due to factor VIII inhibitor. Case 2 was an 80 year-old man with bullous pemphigoid. He had huge liver tumor. We should keep in mind that autoimmune bullous disorders in elderly persons may be complicated with other systemic disease, especially internal malignancy
