Alopecia Areata has well-defined bald patches, often round or oval in shape. The Hair Loss Control Clinic has a very successful treatment program for Alopecia Areata. Alopecia areata can present on the head, beard, and other hairy parts of the body. Even if the spots clear up within a year of treatment, it's common for alopecia areata to reoccur somewhat later.
Alopecia Totalis - Complete baldness, all the hair on the scalp is lost.
Alopecia Universalis - A complete loss of hair from all parts of the body. It sometimes occurs as an extension of generalized alopecia areata. The entire head and body of an individual becomes bald. Hair disappears from the pubic region, armpits, eyelashes, eyebrows, chest, legs, beard, and other areas.