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Types of Hearing Loss

There are various types of hearing loss, primarily categorized into Conductive, Sensorineural, Mixed & Central Hearing Loss. It may occur due to old age, medications, noise or even trauma.

Conductive Hearing Loss

Conductive Hearing Loss occurs when sound is not conducted efficiently through the ear canal, ear drum or bones of the middle ear. Conductive hearing loss is often treatable with medical or surgical intervention. If medical treatment is not recommended then hearing aids are usually appropriate. Some common causes of conductive hearing loss are: ear infections, fluid in the middle ear space, poor Eustachian tube function, damage or perforation of the eardrum, obstruction of the ear canal by ear wax or foreign object, and injury or diseases affecting the bones of the middle ear.

Sensorineural Hearing Loss (SNHL)

Sensorineural Hearing Loss (SNHL) occurs when there is damage to the inner ear (cochlea), or to the nerves connecting the inner ear to the brain. Most of the time, SNHL cannot be medically or surgically corrected. This is the most common type of permanent hearing loss. A sensorineural hearing loss may be caused by hereditary factors, aging, exposure to excessive noise, viral or bacterial infections, or exposure to ototoxic drugs.

Mixed Hearing Loss

Mixed Hearing Loss refers to a combination of conductive and sensorineural hearing loss and occurs when there is a problem in both the outer or middle ear and the inner ear.

Central Hearing Loss

Central Hearing Loss is associated with damage or impairment to the nerves or auditory centres in the brain. Central hearing loss can be a result of head injury or disease.

Types of Hearing Loss

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