The causes of tinnitus are mainly noise, as well as ear diseases, diabetes, tumors and other diseases, ototoxic drugs can also cause tinnitus. 1. Noise: people are easy to long-term exposure to noise such as construction, factories, transportation, vehicle horn, home appliance noise. People who are always in the above noise environment will have more tinnitus, and with the longer exposure to noise, the incidence of tinnitus also increases. 2. Ear diseases: cerumen impaction, otosclerosis, sensorineural deafness, ear trauma, etc. can have tinnitus symptoms. 3. Diabetes mellitus: Diabetes mellitus is also called “metabolic otology”, diabetes mellitus may be complicated by vascular lesions, especially the small blood vessels that nourish the nerves, in the cochlea, vestibule and other parts of the occurrence of such lesions, it will certainly cause corresponding symptoms, such as tinnitus, vertigo, deafness and so on. 4. Ototoxic drugs: the use of certain drugs may cause tinnitus, mainly aminoglycoside antibiotics, such as gentamicin, streptomycin, etc.; macrolide antibiotics, such as azithromycin, roxithromycin, etc.; anticancer drugs, such as vincristine, 2-nitroimidazole and other drugs. 5. Tumor: mainly auditory neuroma, tympanic bulboma, jugular vein bulboma, tinnitus is one of the clinical symptoms of these diseases. Tinnitus is one of the clinical symptoms of these diseases. When tinnitus occurs, it is necessary to actively consult the doctor for examination and diagnosis, and follow the doctor’s instructions for reasonable treatment.