Traction Alopecia

  • Pooya Khan Mohammad Beigi


Traction alopecia is a biphasic form of hair loss, in which it initially presents as a reversible non-scarring type of alopecia, and if the excessive traction of the hair is maintained for years, it becomes a scarring type of alopecia in which the hair loss eventually becomes permanent. Traction alopecia has a patchy, marginal pattern of hair loss with hair breakage. The formation of hair casts is a well-known sign of persistent hair traction [5]. These hair casts are found around a single hair shaft and are made up of the inner and/or outer root sheath, but are not associated with prominent parakeratosis.


Parakeratosis Bitemporal Frontal hair loss Occipital loss Follicle size Vellus hair Terminal hair Catagen Telogen hair Trichomalacia 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Pooya Khan Mohammad Beigi
    • 1
    • 2
    • 3
  1. 1.Department of Health ManagementNew York Medical CollegeValhallaUSA
  2. 2.University of British ColumbiaVancouverCanada
  3. 3.Misdiagnosis AssociationSeattleUSA

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