Alopecia Areata

Alopecia areata is a non-scarring multifocal hair growth disorder characterized by initially patchy hair loss, which can occur on any hair-bearing site of the body. It can be limited to few circular bald areas and can lead to complete baldness of the head or the entire body. Alopecia areata is believed to be an autoimmune disease with a genetic basis and environmental trigger. Immunosuppressing or immunomodulating agents are frequently used and are variably effective in the treatment of alopecia areata, but there are still no options to cure the disease or prevent relapses. Treatment options such as corticosteroids, topical sensitizers and minoxidil are discussed in the following chapter.