Alopecia, for those who don't know, is an autoimmune hairloss disease. There are a few different types of Alopecia. Alopecia areata is the most common, which causes patches of hair loss on the head or face. Alopecia areata is estimated to account for 70 percent of all Alopecia cases. Alopecia totalis causes complete hair loss just on the head and face. Alopecia Universalis is rarer and causes complete loss of all hair on the body. With these three types, the hair still has the chance to regrow, because the follicles are still in place. Cicatricial Alopecia, the rarest form of Alopecia, causes permanent hair loss due to the hair follicles being destroyed.