In patients infected with human immunodeficiency virus (HIV) the development of autoimmune diseases, while not life threatening, is an interesting phenomenon that may result from immune dysfunction or from B cell infection by HIV, Epstein-Barr virus, or other unknown viruses. Vitiligo and alopecia areata are among the autoimmune diseases that have been reported in 11 patients infected with HIV. We describe a 47-year-old man who had vitiligo and alopecia areata approximately 2 years after testing positive for HIV antibodies.