The reason for the pulsating sound heard in the ear, i.e. vascular pulsatile tinnitus, may be caused by sigmoid sinus migration, jugular vein bulb elevation, and tympanic body tumor and other diseases. 1. Sigmoid sinus migration: when the sigmoid sinus protrudes into the mastoid cavity too much, and the sinus wall is thin or partially defective, the pulsation sound can be heard in the ear. 2. High jugular vein ball: when the jugular vein ball is too high and close to the vicinity of the cochlear base, the pulse sound can be heard in the ear. 3. Tympanic body tumor: In the early stage of the disease, there is unilateral pulsatile tinnitus, mild conductive deafness and a feeling of stuffiness in the ear, and the tinnitus is consistent with the sound of pulse. If the sound of pulse is heard in the ear frequently or persistently, it is recommended to consult a doctor in time, improve the relevant examinations under the guidance of the doctor to make a clear diagnosis, and follow the doctor’s instructions for standardized treatment.