Other forms of Alopecia include Alopecia Areata. It is characterized by 'bald patches' forming on the head, as it does not cover one specific area but creates hair loss in patches. This form of hair loss is not restricted to the head alone, nor to one gender – both men and women can be affected by it. Alopecia areata is thought to be an autoimmune disorder, whereby the bodies immune system turns against it an attacks healthy tissue. It had been known to emerge when a patient has suffered trauma, but often it has no apparent cause.
Hair pieces are often the most suitable non-surgical hair replacement, though for cases where there's a great amount of hair loss, full hair systems are available.