If you hear a pulse in your ear, if it is a short-term, occasional occurrence, it may be related to lack of rest, fatigue, or emotional stress, and excessive blood pressure fluctuations. If you hear a pulse in your ear for a long period of time, you should rule out the presence of the middle ear, or thin walls of the mastoid vessels, or direct exposure of blood vessels, such as a diverticulum of the sigmoid sinus, which requires a CT examination. It is also necessary to rule out middle ear or jugular foramen area occupations, such as jugular vein bullae, which can be determined by endoscopy and CT.