Medical Health Encyclopedia

Alopecia areata


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Alopecia, under treatment
Alopecia, under treatment
Alopecia areata with pustules
Alopecia areata with pustules
Alopecia totalis - back view of the head
Alopecia totalis - back view of the head
Alopecia totalis - front view of the head
Alopecia totalis - front view of the head
Overview Symptoms Treatment Prevention
Alternative Names

Alopecia totalis; Alopecia universalis


Symptoms

Most of the time there are no other symptoms besides hair loss, but some people may feel a burning sensation or itching.

Alopecia areata usually begins as one to two patches of hair loss, most often on the scalp. It may also be seen in the beard, eyebrows, and arms or legs.

Roundish patches of hair loss are smooth, and may be peach-colored. Hairs that look like exclamation points are sometimes seen at the edges of a bald patch.

  • Loss of all scalp hair (alopecia totalis), often within 6 months after symptoms first start.
  • Loss of all scalp and body hair (alopecia universalis).

Signs and tests

On occasion, a scalp biopsy may be performed. Several blood tests may be done, because alopecia areata may occur with autoimmune conditions.



Review Date: 10/14/2010
Reviewed By: Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. Also reviewed by Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org).




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