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What is Sensorineural Hearing Loss?

April 26, 2017hearing loss Sensorineural

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What is Sensorineural Hearing Loss?

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Find the answer to the question ‘What is Sensorineural Hearing Loss’ on Bay Audiology – the hearing experts. There are two types of hearing loss – sensorineural hearing loss (inner ear) and conductive hearing loss (outer or middle ear). Sensorineural hearing loss, the most common type of hearing loss, occurs when hair cells of the inner ear and their potential for sending nerve impulses are damaged. Sensorineural hearing loss is often permanent, but greatly helped by hearing aids, particularly when hearing loss is the result of loud noise. There are precisely 23,000 hair cells in each ear. Loud noise, certain drugs, fluid build-up in the inner ear, infections such as chicken pox and mumps, tumours, and the aging process, all cause damage to the hair cells. Tumours, strokes and meningitis are known to damage the auditory nerve connecting the inner ear to the brain.

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Sensorineural hearing loss, also referred to as nerve deafness, is most commonly due to necosis in the hair cells of the cochlea. On occasion sensorineural hearing loss may be attributed to problems on the eighth cranial nerve (auditory nerve) which may be caused by a tumor (acoustic neruoma).