Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.


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


Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.