Ear hamartomas, also known as preauricular fistula, is a common congenital malformation of the ear, which is autosomal dominantly inherited. Pre-auricular fistula, fistula is located in front of the foot of the ear wheel, a few can be located in the cavity of the ear armor or the triangle fossa, the other end of the blind tube, depth, length varies, can be branched. Patients usually can be asymptomatic, occasionally feel local tingling, sometimes gently squeezed around the small eye there is often a little slightly smelly white sebaceous material. The majority of patients with preauricular fistulas are asymptomatic for life. Occasionally, the local itching discomfort, some pressure can be a little thin mucus or creamy sebaceous material from the fistula overflow,. When infected, the local and surrounding tissues are red, swollen, painful, pus; repeated infections can form a scar or abscess fistula. Once infected, it is easy to recur. Asymptomatic people may not be treated. Local itching, secretion overflow, acute infection, local abscess, should be standardized treatment under the guidance of the doctor, after the inflammation is controlled by the doctor to assess the condition of the earliest possible surgical treatment.