Causes of deafness: There are many causes of deafness. Hereditary deafness accounts for 50% of all deaf patients, and most of them are difficult to treat sensorineural deafness, which often seriously affects the effectiveness of rehabilitation training for deaf children if not detected early. Drugs Gentamicin is the main drug that causes toxic deafness and damages the vestibule and cochlea of the ear, and its use in children can cause irreversible hearing loss. Also streptomycin, kanamycin, diuretics, quinine, chloroquine, birth control pills, and heavy metal preparations are ototoxic drugs and should be used with caution. Noise Prolonged, excessive noise can have adverse effects on the central nervous system, especially on the auditory organs, leading to neurological deafness. Infections and diseases Epidemic encephalomyelitis, measles, mumps, rubella, colds and other diseases can cause degeneration and atrophy or inflammation and lysis of ganglion cells. They may also invade the auditory nerve trunk, causing it to become inflamed or compressed by the scar left by the surrounding inflammation, sometimes causing edema and even lysis of the cells of the auditory nerve nucleus and leading to deafness. Trauma Trauma that perforates the tympanic membrane can cause conductive deafness; cranial trauma, inner ear damage, sudden bursts or sudden changes in air pressure can cause neurogenic deafness. Mental and Emotional Stress, stress, and emotional stress can cause sudden deafness due to short-term hearing loss. Prevention of deafness: To prevent deafness, we should start with ourselves and take care of our ears scientifically to protect our hearing. ① Maintain a good mental state. Take an active part in social activities and maintain an optimistic and unhurried mood; ②Create good dietary habits. Adjust the diet structure, eat more food rich in zinc, iron and calcium, avoid long-term consumption of high-salt, high-fat and low-fiber foods, avoid overeating, and quit smoking and drinking; ③Cautiously use or prohibit drugs that are harmful to the auditory nerve. The use of drugs to strictly grasp the indications. Aminoglycoside antibiotics are an ototoxic drug with the most cochlear damage, so avoiding the abuse of such antibiotics will be an important measure to reduce drug-related deafness; ④ Stay away from noise. Avoid contact with noise. You should be careful not to listen to the radio for too long and the volume should not be too high. If you massage the auricle, pinch the ear, you can also massage the Fengchi point in the recesses of the hairline on both sides of the back of the neck, which can promote blood circulation in the inner ear and play a role in waking up the brain and making the ears clear. Hearing aids: Most of the moderate deafness can be compensated with hearing aids; Vibratory acoustic bridges: For moderate to severe conductive, mixed and sensorineural deafness, vibratory acoustic bridges can help rebuild hearing; Cochlear implants: For severe and very severe sensorineural deafness, cochlear implants are the only effective way to rebuild hearing.