Tinnitus after lunch may be related to negative pressure in the tympanic chamber or elevated blood glucose, or eustachian tube function tent. If there is no clear ear disease, such as otitis media, Meniere’s disease and other tinnitus after lunch, it may be related to the negative pressure in the tympanic chamber or postprandial elevation of blood glucose, blood lipids, and blood pressure, which may affect local blood circulation in the ear, leading to increased blood viscosity, thus triggering tinnitus. When the patient eats, the food may be more spicy and irritating, leading to congestion and swelling of the mucous membrane of the oropharynx and nasopharynx, making the The pharyngeal opening of the Eustachian tube is pressurized, and the action of chewing food may cause negative pressure inside the tympanic chamber, causing the patient to experience tinnitus. Temporary tinnitus is not a big problem, but if the tinnitus is persistent, it is recommended to go to the ear, nose and throat department of the regular hospital.