Echo in the ear is mainly considered to be a dysfunction of the Eustachian tube closure, which can be caused by excessive chewing and other conditions, as well as local, neighboring organs and systemic diseases. In addition, secretory otitis media and other diseases can also appear in the ear echo symptoms. 1. Prolonged forceful breathing, excessive swallowing, excessive chewing, mental overstress, autonomic nervous disorders, etc., can keep the Eustachian tube open, so that the Eustachian tube closure is not functioning well, and the sound of the speech directly enters the tympanic chamber. 2. The atrophy of elastic fibers and fat pads of the mucous membrane of the Eustachian tube and nerve paralysis caused by local, neighboring organs and systemic diseases (e.g. atrophic rhinitis, atrophic pharyngitis, nasopharyngeal surgery, or after high-dose radiotherapy, etc.) can enlarge the lumen of the Eustachian tube and make the Eustachian tube lose the tissue pressure required to maintain its closed state, thus leading to the poor closure of the Eustachian tube or inability of its closure. 3. In the case of secretory otitis media, the fluid in the ear cavity may also affect the sound conduction and thus produce echoes. In addition, it cannot be ruled out that the patient may have a subjective tinnitus that produces the sensation of an echo. In conclusion, patients with echoes in the ear should consult a doctor for timely examination and treatment through tympanic cavity puncture, etc. At the same time, patients should also pay attention to clean the ear canal to avoid cerumen embolism.