Aviation otitis media is a pathology caused by the middle ear not being able to withstand the drastic changes in air pressure during aviation. For example, when we fly, as the altitude rises, the atmospheric pressure decreases, the volume of air in the middle ear cavity increases, and the excess thin air rushes out through the eustachian tube. At this time, if the airplane descends sharply, the atmospheric pressure increases and the volume of air in the middle ear cavity decreases. If the patient’s eustachian tube does not function well, the outside air cannot enter the middle ear cavity in time, which will cause negative pressure in the middle ear cavity, and if the negative pressure continues, the mucous membrane of the middle ear cavity wall will become congested and exude, resulting in air pressure injury otitis media. Therefore, when flying, constant yawning, swallowing, or even chewing gum can promote the opening of the eustachian tube, maintain the balance of internal and external pressure, and effectively prevent aviation otitis media. If you have upper respiratory tract infection or chronic hypertrophic rhinitis sinusitis or other diseases that cause eustachian tube dysfunction, you should pay more attention to the occurrence of aviation otitis media.