Your ability to hear is an unique as your fingerprint. No two people have exactly the same hearing impairment. Work – place noise, inherited medical conditions, childhood and adults illness all combine to produce different types of hearing loss in different people.
There are three types of hearing loss :
a) Conductive hearing loss, produced by injury to, or problems with, the bones, eardrum and membranes which carry sound from the external ear through the middle ear in the inner ear.
b) Sensorineural hearing loss, one in which all the mechanisms listed above are intact but a deterioration of the inner ear is present. This may be caused by the natural aging process, or degeneration of the nerves leading from the inner ear to the brain.
c) Mixed hearing loss, one which contains elements from both conductive and sensorineural hearing loss.