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Defects of the hair shaft
Dermoscopic image showing light coloured nodular thickenings along the hair shafts (red arrows) in trichorrhexis nodosa

Defects of the hair shaft

Dermoscopic image showing light coloured nodular thickenings along the hair shafts (red arrows) in trichorrhexis nodosa  (DHS-patient2)


Keywords: Alopecia, Dermoscopy, Female, Hair, Hair loss, Hair shaft, Light-coloured nodular thickenings, Scalp, Trichorrhexis nodosa, Trichoscopy



Structure of a normal hair follicle

The hair follicle is the structure of skin from which the hair shaft emerges. The hair shaft grows from germinative cells in the hair bulb deep within the dermis.

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