Tuesday, February, 14, 2012

Trichorrhexis nodosa

Table of Contents

Definition

Trichorrhexis nodosa is a problem in which thickened or weak points (nodes) along the hair shaft cause your hair to break off easily.


Causes, incidence, and risk factors

Your genes may play a role in whether or not you develop trichorrhexis nodosa.

Certain things you do to your hair -- such as blow-drying, over-brushing, perming, or excessive chemical use -- appear to trigger the condition.

In some cases, trichorrhexis nodosa may be caused be an underlying disorder such as hypothyroidism, argininosuccinicaciduria, Menkes' kinky hair syndrome, Netherton syndrome, or trichothiodystrophy.



Review Date: 08/26/2009
Reviewed By: Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network; Linda Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine. 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)