Tympanic membrane repair has two purposes: one is to seal the middle ear cavity to prevent reinfection; The second is to improve listening; The condition of anterior dike repair is that there is no inflammation in the middle ear, that is, it must be more than three months after the inflammation is controlled. Another condition is that the subsidy test is positive, that is, the subsidy test can improve listening. The cost of operation is related to the area, the degree of tympanic membrane injury and the difficulty of repair. Generally, hospitals above the second level in medium-sized cities need about 3000-4000 yuan; The success rate of operation is about 80-90%, but care must be taken to avoid reinfection after operation. Otherwise there is a certain recurrence rate.