The ringing of the ears with swallowing is caused by the change in air pressure in the middle ear with the swallowing action. The human middle ear is a closed cavity, the outer side of the eardrum, inside the inner ear, the only channel in the middle ear is the Eustachian tube, one side is through the middle ear, the other end leads to the back end of the nasal cavity. The role of the Eustachian tube is, for one thing, to regulate the air pressure in the middle ear, so that the air pressure in the middle ear is consistent with the outside atmospheric pressure and the eardrum is maintained in a normal position. The other function is to drain the secretions from the tympanic cavity. Normally the Eustachian tube is closed and open alternately, in chewing, swallowing or yawning, the opening of the Eustachian tube can be perceived, in the open at the same time, the airflow will enter into the middle ear, the airflow into the middle ear, so that the middle ear air pressure changes, will produce vibration of the tympanic membrane, the appearance of rumbling sound. If swallowing and ear ringing is accompanied by other uncomfortable symptoms, it is necessary to consult a doctor in time, so as not to miss the condition.