The ear compartment, also known as a preauricular fistula, is a congenital condition. Whether or not surgery is needed depends mainly on whether or not there is recurrent infection in the ear canal, which causes localized pus, swelling, and pain. If the fistula opening of the preauricular fistula is clear and a small amount of fluid flows out, it usually does not need special treatment. Most preauricular fistulas do not develop throughout life and do not require surgical treatment. Pre-auricular fistula occurred two or more infections, after anti-inflammatory, local incision and drainage treatment, such a case is recommended for surgical removal, complete removal of the fistula. First of all, the fistula in front of the ear fistula injection of methylene blue, marked the specific branches of the fistula, under local anesthesia or general anesthesia, incision of the skin around the fistula, subcutaneous tissue to find the fistula, complete removal of the fistula. Postoperative drainage strip, localized pressure bandage, to promote early healing of the wound, postoperative static antibiotic anti-infection treatment.