You searched for: “trichokryptomania”
trichokryptomania (s) (noun) (no pl)
An abnormal desire to break off one's hair or beard with the fingernails: Trichokryptomania is a psychogenic disorder in which a person is compelled to break or pull out one's hair, ofen combined with the obsessive urge to manipulate it.
trichorrhexomania, trichokryptomania (s) (noun) (no pl)
An impulse to pinch off one’s hair: Old Mr. Clark had a case of trichorrhexomania which was a strong compulsion to break off hairs of the scalp or beard with the fingernails.