Although there are many types of hearing loss, the most common type is sensorineural (also called “cochlear” or “inner ear” or “nerve loss”). The second most common type of loss is conductive. Other types of loss include mixed and central.
SENSORINEURAL HEARING LOSS
When the problem is in the inner ear, a sensorineural loss occurs. Sensorineural loss is the most common type of hearing loss. More than 90 percent of all hearing aid wearers have sensorineural loss. The most common causes of sensorineural loss are; age related changes, noise exposure, inner ear blood circulation, inner ear fluid disturbances and problems with the hearing nerve.
CONDUCTIVE HEARING LOSS
Conductive loss occurs when sound is not conducted efficiently through the ear canal, eardrum or the tiny bones of the middle ear, resulting in a reduction of loudness of sound. People with conductive loss may notice their ears seem to be full or plugged. Conductive loss may result from earwax blocking the ear canal, fluid in the middle ear, middle ear infection, obstructions in the ear canal, perforations (hole) in the eardrum or disease of any of the three middle ear bones.