γγA perforated tympanic membrane is a symptom that is not difficult to detect on specialist examination. Tympanic membrane perforations are classified as acute or chronic according to the duration of the perforation. Acute traumatic perforations can be fissure-like and irregular, with bleeding at the edge of the perforation, combined with infection and purulent discharge from the external ear canal or middle ear cavity; acute tympanic membrane inflammatory necrotic perforation is seen as local ischemia and convexity of the tympanic membrane with spillage of secretions. Chronic tympanic membrane perforation can be divided into central perforation, marginal perforation, and flaccid perforation by location.γγIt should be noted that the latter two types, which may have a high likelihood of combined middle ear lesions, are also called dangerous perforations. It should also be noted that tympanic membrane perforations may be combined with tympanic membrane calcification, tympanic chamber calcification, tympanic membrane thinning, adhesions to the tympanic chamber, and middle ear mastoid lesions. Combine pure tone hearing threshold examination, otoscopy, eustachian tube function examination, CT and other imaging examinations to fully grasp the local disease.