Sensorineural hearing loss is related to various factors that stimulate the cochlea, auditory nerve and auditory center causing structural and functional abnormalities, which can be seen in noise stimulation, heredity, infection, drugs, aging and other factors. 1. Noise stimulation: When the human body is in a noisy environment for a long time, the cochlea and the auditory nerve will be stimulated repeatedly by noise, which will cause the symptoms of sensorineural hearing loss; 2. Heredity: genetic factors, the main consideration is related to the presence of certain genetic mutations in the patient’s family; 3. Infection: during the onset of ear infectious diseases such as purulent otitis media, herpetic tympanitis, cholesteatoma otitis media and other infectious diseases triggered by bacterial, viral and other pathogens, the toxins enter into the inner ear through the two windows to damage and destroy the structure of the inner ear, which triggers sensorineural hearing loss; 4. Drugs: Long-term high-dose use of gentamicin, streptomycin and other drugs with ototoxic side effects, can be triggered by damage to the auditory nerve sensorineural hearing loss; 5. Aging: for the elderly, sensorineural hearing loss can be triggered by the decline in the function of the body’s tissue cells, which is a normal physiological phenomenon. The causes of sensorineural hearing loss are many, and should be actively go to the ENT department of the regular hospital for a clear diagnosis.