Trichotillomania


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Definition

Trichotillomania is hair loss from repeated urges to pull or twist the hair until it breaks off. Patients are unable to stop this behavior, even as their hair becomes thinner.


Alternative Names

Trichotillosis; Compulsive hair pulling


Causes, incidence, and risk factors

Trichotillomania is a type of impulsive control disorder. Its causes are not clearly understood.

It may affect as much as 4% of the population. Women are four times more likely to be affected than men.


References

Morelli JG. Disorders of the hair. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 654.

Gould CM, Sanders KM. Impulse-control disorders. In: Stern TA, Rosenbaum JF, Fava M, Biederman J, Rauch SL, eds. Massachusetts General Hospital Comprehensive Clinical Psychiatry. 1st ed. Philadelphia, Pa: Mosby Elsevier; 2008:chap 23.

Kratochvil CJ, Bloch MH. Trichotillomania across the life span. J Am Acad Child Adolesc Psychiatry. 2009;48:879-883.


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Review Date: 2/13/2012
Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington; and Timothy Rogge, MD, Medical Director, Family Medical Psychiatry Center, Kirkland, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.
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Last Updated 4/17/2012
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