Hearing loss is categorized depending on the part of the auditory system it affects and can be influenced by several factors.
Conductive Hearing Loss
Conductive hearing loss is caused by something that stops the sound from entering the outer or middle ear, such a congenital absence, trauma, infection, or tumors, among other causes. Conductive hearing loss can often be treated with medication, surgery, or – in certain cases – a hearing aid.
Sensorineural Hearing Loss
Hearing loss that is caused by an issue with the function of the hearing nerve or inner ear is referred to as sensorineural hearing loss. It is generally caused by a virus, disease, aging, malformation, autoimmune inner ear disease, abrupt changes to air pressure, or exposure to loud noise, among several other causes. This is the most common type of hearing loss and is normally treated with the use of a hearing aid.
Mixed Hearing Loss
This covers hearing loss that includes both conductive and sensorineural attributes.
There are also four different degrees of hearing loss – from mild and moderate to severe and profound – as well as descriptions of hearing loss, including unilateral or bilateral; pre-lingual or post-lingual; symmetrical or asymmetrical; progressive or sudden; fluctuating or stable; and congenital or acquired/delayed onset.