Typically a permanent hearing loss due to disease, trauma, or inherited conditions affecting the nerve cells in the cochlea, the inner ear, or the eighth cranial nerve. Sensory hearing loss happens because of some damage of hair cells, which makes them function less effective. Neural hearing loss happens because of a damage of the cochlear nerve, and it affects the transfer of nerves through the nerve. There is a variety of reasons which cause the sensorineural hearing loss. These causes are: noise, a central cause, genetic, disease or illness, medication or some kind of physical trauma. A central cause is rather unusual, any other is common.
When it comes to noise as a cause for this kind of condition, it mostly affects people who live near noisy places, like airports. They are constantly exposed to very loud noise, and therefore may acquire a hearing damage. Also people who work near noisy machines, but don’t wear any kind of protection may get a hearing damage. Just like people who listen to loud music. Hearing loss can be genetic as well, and it is probably the most common cause for a hearing problem. Another mentioned symptom is a disease or illness. These diseases which can cause hearing loss are: autoimune disease, AIDS, HIV, fetal alcohol syndrom, premature birth, otosclerosis, posterior circulation infarct and Charcot-Marie-Tooth disease. There are also some medications which can cause a great damage to the ear, and therefore are not used except in cases were it can’t be avoided. Another mentioned cause for hearing loss is physical trauma. This can be a damage to the ear, a head injury, ear infection etc.
