There are more types of possible complications of otitis media surgery, but the incidence is low and most of them are mild. These include (1), general anesthesia anesthesia accident, anesthetic allergy, respiratory and cardiac arrest. (2) Various postoperative infections. (3), intraoperative and postoperative hemorrhage, hemorrhagic shock, life-threatening. (4), Postoperative recurrence of otitis media. (5), No relief of postoperative effusion symptoms, no significant improvement or decrease in hearing, sensorineural deafness. (6), Temporary or permanent facial paralysis. (7), Further treatment is required when the disease is tumorigenic according to postoperative pathological tests. (8), Unilateral hypoesthesia of taste after bulbar nerve injury. (9).Secondary cholesteatoma. (10), Stenosis or atresia of the external auditory canal. (11), Cerebrospinal fluid ear leakage, intracranial infection. (12).Local scarring or deformity. (13), Postoperative tympanic membrane graft detachment tympanic membrane reperforation, tympanic cavity adhesions. (14), Postoperative vertigo, tinnitus. (15).Other complications that may occur that cannot be anticipated or cannot be prevented, etc.