After tympanocentesis, the main hazards include the following: First, the patient’s symptoms of otitis media are not resolved, and after the puncture, there will still be repeated oozing in the middle ear cavity, and the patient may need another or multiple punctures. Secondly, some patients may experience nausea, vomiting, and vertigo after the puncture treatment, which usually improves with lying down and resting with eyes closed. Third, after tympanic membrane piercing, if the patient has water inside the ear canal and there is infection, it may easily lead to the patient’s tympanic membrane perforation and non-healing. If the perforation is particularly large, it will affect the patient’s hearing, sometimes accompanied by tinnitus, because the external ear canal is connected to the middle ear cavity, so the patient may often lead to middle ear cavity infection will appear ear pus.