Frequent tinnitus is commonly caused by diseases of the Eustachian tube or the ear, neurogenic tinnitus, tinnitus of vascular origin and other diseases. 1. Diseases of the Eustachian tube or the ear: Tinnitus can occur in cases such as cerumen embolism, otitis externa, otitis media, foreign bodies in the ear canal, nasopharyngitis, and so on. 2. Neurogenic tinnitus: Patients may feel persistent cicadas, hissing and other ringing sounds in the ears without any external stimuli, that is, persistent tinnitus. Divided into sensorineural tinnitus, peripheral nervous tinnitus, central nervous tinnitus. 3. Vascular tinnitus: carotid artery or vertebral artery system of vascular lesions, including intracranial and extracranial vascular lesions can cause tinnitus, such as arterio-venous fistula, aneurysm, sigmoid sinus diverticulum, etc., often produces synchronized with the pulse of the pulsation or blowing wind-like murmur. Sudden deafness, Meniere’s disease can also appear tinnitus symptoms, it is recommended to consult a doctor in a timely manner, to identify the cause of the disease, and then further treatment, so as not to delay the condition.