The cost of surgery for ear fistula depends on different financial differences from region to region. First, the cost of surgery is definitely different from region to region depending on the level of economic development. Second, it depends on the age of the patient. If the patient is an infant or a pediatrician, the surgery needs to be performed under general anesthesia, and the cost of surgery, general anesthesia, and other hospitalization costs are relatively high, at least $5,000 or more. For adults, preauricular fistula removal surgery is usually performed on an outpatient basis, under local anesthesia, and the cost of the surgery is relatively low, usually around $500. Third, it depends on the complexity of the ear fistula. If there are few or no obvious bifurcations in a simple ear fistula, the cost of surgery is also relatively low if the fistula is simply removed. If the fistula has many bifurcations, even to the middle ear, to the eustachian tube, to the submandibular, the cost of such surgery is very high, and also requires surgery under general anesthesia, the cost of such surgery is at least 5000 yuan or more.