Buzzing in the head is called tinnitus, which may be a physiological phenomenon, or it may be caused by cerebral ischemia and ear diseases. 1. Physiological reasons: fatigue, lack of sleep, mental stress, emotional anxiety and other factors can lead to buzzing in the head, this situation is generally no organic lesions, by removing the undesirable factors can be relieved. 2. Pathological causes (1) Cerebral ischemia: tinnitus caused by cerebral ischemia is common in older people, and these people are accompanied by diabetes mellitus, hypertension, hyperlipidemia and other underlying diseases, which can lead to ischemia of the internal auditory arteries when the cerebral blood supply is insufficient, thus causing tinnitus symptoms. (2) Ear diseases: middle ear infection, middle ear blockage, Meniere’s disease, Eustachian tube blockage, tympanic membrane perforation, acoustic neuroma and other diseases can lead to tinnitus symptoms. If tinnitus symptoms occur and are not relieved after removing physiological factors, it is necessary to go to the neurology department or otorhinolaryngology department of the hospital in time for relevant examinations to clarify the cause of the disease and then carry out targeted treatment.