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A form of uncombable hair syndrome, a condition characterized by scalp hair that is impossible to comb due to the haphazard arrangement of the hair bundles. A characteristic morphologic feature is a triangular to reniform to heart shape on cross-sections, and a groove, canal or flattening along the entire length of the hair. Most individuals are affected early in childhood and the hair takes on a spun-glass appearance with the hair becoming dry, curly, glossy, lighter in color, and progressively uncombable. The hair growth rate can range from slow to normal, and the condition improves with age. UHS1 inheritance is autosomal dominant.




Chevelure en vadrouille
Cheveux incoiffables
Pili trianguli et canaliculi
Spun glass hair
Uncombable hair syndrome
Unmanageable hair syndrome