Surgery should be considered for purulent suppurative otitis media when the tympanic membrane is perforated and has not healed for more than six months after conservative drug treatment, when the bone ulcer type cannot be effectively controlled by conservative treatment, when conductive deafness or mixed deafness remains and hearing needs to be improved, or when there is a secondary cholesteatoma. The purpose of surgery for chronic suppurative otitis media is to remove the lesion and stop the flow of pus; improve hearing and improve hearing by hearing chain exploration hearing reconstruction if necessary; and improve the quality of life to alleviate the recurrent middle ear infections after a cold or water in the ear, allowing normal bathing or swimming. Common surgeries include: 1. Tympanoplasty + Tympanoplasty: This includes tympanic membrane repair, as well as auditory chain exploration and reconstruction of the auditory chain. 2. Papillotomy: This is suitable for osteoarthritis and cholesteatoma otitis media with various otogenic complications. 3. Good papillotomy (including Bondy surgery), complete wall papillotomy: The purpose is to eradicate the papillae, the tympanic sinus and the lesions within the tympanic chamber, and perforate the tympanic membrane The three are connected to the external ear canal to form a cavity with a complex epithelium. The purpose of surgery is to completely remove the lesions of mastoid process, tympanic sinus, tympanic chamber and eustachian tube, stop the flow of pus, obtain a dry ear and prevent intracranial and extracranial complications. 4. Tympanoplasty: It is a surgery to eradicate the middle ear lesions and reconstruct the sound transmission structure of the tympanic chamber. The purpose is to remove the lesion and repair the tympanic membrane and reconstruct the auditory chain to improve hearing.