下唇瘘管或称唇窦或唇窝,为一种罕见的先天畸形,其发病率约占新生儿的1/20万,女性发病率较高,女与男之比约为2:1。此瘘管经常排出粘液,多为双侧,但有时也见单侧瘘、正中瘘或口角旁瘘的。下唇瘘常与唇裂、腭裂同时伴发。本文两例均系男性,一例因双唇裂要求修复;另一例因经常流出粘液而来就诊。 Lower lip fistula or lip or lip socket, is a rare congenital malformations, the incidence of about 1/20 million newborns, the higher the incidence of women, the ratio of women to men is about 2: 1. This fistula often mucus discharge, mostly bilateral, but sometimes also see unilateral fistula, fistula or fistula fistula. Lower lip fistula often cleft lip, cleft palate accompanied by. Two cases of this article were men, one case due to cleft lip repair; the other due to frequent outflow of mucus came for treatment.