Stephen J. Schueler, M.D.

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Alopecia Areata Evaluation

The evaluation of alopecia areata or hair loss begins with a history and physical examination. The diagnosis of alopecia areata is made on physical examination. Determining the exact cause usually requires blood tests or a biopsy.

Physical findings in those with alopecia areata include:


Tests may identify an underlying cause.

Tests used to evaluate alopecia areata may include:

Other testing used to evaluate alopecia areata may include:
  • Hair pull test
  • Microscopic examination of the hair follicle
  • KOH preparation:
  • Scalp biopsy

Continue to Alopecia Areata Treatment

Last Updated: Nov 10, 2010 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Alopecia Areata References
  1. Lenane P, Pope E, Krafchik B. Congenital alopecia areata. J Am Acad Dermatol. 2005 Feb;52(2 Suppl 1):8-11. [15692503]
  2. Rainforth SI. Historical diagnostic and treatment. Alopecia areata. Skinmed. 2005 Jan-Feb;4(1):5. [16138410]
  3. Sladden MJ, MacDonald Hull SP, Wood ML, Hutchinson PE, Messenger AG. Alopecia areata: the need for guidelines and evidence-based dermatology. Br J Dermatol. 2005 May;152(5):1086-7. [15888188]
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