A postauricular sebaceous cyst is a cyst formed when the ducts of the sebaceous glands behind the ear are blocked and the secretions cannot be excreted, resulting in a localized collection. It is a very simple surgery, that is, it is directly removed, usually in outpatient surgery, the cost of surgery is relatively cheap, outpatient surgery is under local anesthesia, the general cost of surgery will not exceed about 200 yuan, plus the cost of all the drugs, generally does not exceed about 500 yuan. For sebaceous cysts in children, the surgery is usually done under general anesthesia, unless he is very cooperative and can also be done under local anesthesia, which has some costs associated with general anesthesia, at least 2,000 yuan or more. Of course, the level of development of the economic conditions of each place is different, economically developed areas, its cost may be more expensive, less economically developed areas, the cost of surgery is relatively lower, this is the reality of the difference.