Causes of auditory nerve damage

Because we have hearing, we can hear moving songs, greetings from loved ones and all kinds of wonderful sounds in nature. Therefore, hearing is one of the most precious treasures God has given to humans. But if our auditory nerves are damaged, we are in danger of losing an important treasure. So what causes damage to our auditory nerves? Let me tell you, I hope you will pay more attention in the future.

Noise can damage the auditory nerve. The pathway of sound conduction is as follows: sound signals pass through the external auditory canal - eardrum vibration - auditory ossicles (malleus, stapes, incus) - inner ear fluid vibration - cochlear hair cells produce electrical impulses - auditory nerve - central sound receptors in the brain, and then we hear the sound. If there is a problem in any part of this process, no sound may be heard. There are two main types of damage to hearing caused by sound: one is sudden loud noise, such as setting off firecrackers; the other is chronic noise, which occurs when working under high noise for a long time and the hearing is damaged unknowingly.

Stress is likely to cause sudden deafness, a type of sensorineural hearing loss, which is characterized by a sudden loss of hearing in one ear, and may be accompanied by tinnitus, a feeling of stuffiness in the ear, etc. Pathogenesis: Stress, fatigue, emotional excitement, viral infection and other factors lead to increased secretion of adrenaline in the body, spasm and contraction of small arteries in the inner ear microcirculation, leading to ischemia and hypoxia of the inner ear, causing inner ear lesions, damage to the sound-sensing part of the inner ear, and hearing loss.

Commonly used antibiotics that can damage the auditory nerve include streptomycin, dihydrostreptomycin, gentamicin, kanamycin, puromycin, neomycin, vancomycin, tobramycin, and kasugamycin. Some other commonly used drugs can also damage the auditory nerve and cause deafness, such as aspirin, furosemide, propranolol, uric acid, quinidine and anticonvulsants. If these drugs are used in combination, the incidence of adverse drug reactions will increase due to drug interactions.

If your auditory nerves have been damaged, please don't be sad. Modern medicine is so advanced that we can use hearing aids to hear sounds, and we can also implant cochlear implants to let everyone hear the wonderful sounds of the world again. Finally, the editor hopes that everyone can protect their hearing well.