Chronic suppurative otitis media has three main manifestations: (1) Ear pus: The fluid flowing from the external ear canal is viscous in texture, yellow or white in color, continuous or intermittent in time, and often recurs or worsens after a cold or flu. (2) Hearing loss: The tympanic membrane and the auditory chain work together to transmit sound from the outside world into the inner ear. In chronic suppurative otitis media, the integrity of the tympanic membrane and the mobility of the auditory chain are directly affected, and sound transmission is blocked, so patients directly feel that they cannot hear or hear well. (3) Tinnitus: less frequent than the first two. Once tinnitus occurs, it means that the inner ear may be affected, and timely treatment is needed to restore the closure of the middle ear and improve the function of the inner ear.