Trichorrhexis Nodosa – A Hair Shaft Disorder

Trichorrhexis Nodosa – A Hair Shaft Disorder

Trichorrhexis nodosa (TN) is a hair shaft disorder affecting all ethnicities1. Individuals with this disorder usually have fragile or easy to break hair due to cuticle loss (loss of the outer hair shaft layer)2. When the cuticle disappears, the exposed fibers separate and start to fray, looking a little like

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