Pre-auricular fistula, or congenital pre-auricular fistula, is a common congenital ear malformation caused by poor fusion of the six mound-like nodules in the 1st and 2nd gill arches, which should develop into the auricle at embryonic age, or due to incomplete closure of the 1st gill groove. It has also been found to be hereditary and autosomal dominant with no sex difference. Congenital fistulas can be categorized into simple, infected and secretory types. Infected fistulas account for the majority of congenital fistulas and require elective surgical treatment. Simple fistulas usually have no clinical symptoms, while secretory fistulas have a small amount of discharge, which can become malodorous if it gets worse, and require surgery. If diagnosed with this disease, according to the symptoms of active medical treatment, under the guidance of the doctor standardized treatment.