Trichorrhexis Nodosa of Moustache.

A 29 year old patient, developed trichorrhexis nodosa of only the moustache at both its ends. There was no personal or family history of any hair, dermatological or central nervous system disorder. Also, there was no history of any previous topical or systemic therapy. In the absence of any other identifiable cause; his habit of repeated twirling of his moustache possibly resulted in trichorrhexis nodosa.