Hear Well Be Well - How Does Hearing Loss Occur

How Does Hearing Loss Occur

Hearing loss can have many causes, including: exposure to loud environments, illness, earwax, aging, physical damage (such as a perforated eardrum or damage to the nerve endings inside the cochlea) or structural abnormalities in the ear itself.

Types and Causes of Hearing Loss

Conductive Hearing Loss:

Conductive Hearing Loss

Conductive hearing loss is often temporary and can often be corrected. Conductive hearing loss stems from problems of the outer or middle ear and can be caused by:

  • Infection
  • Otosclerosis
  • Build-up of wax or fluid
  • Punctured eardrum

This type of hearing loss can be treated with wax removal, medicine or surgery.

Sensorineural Hearing Loss / Nerve Deafness:

Sensorineural Hearing Loss / Nerve Deafness

Sensorineural hearing loss is the most common type of hearing loss. In fact, it accounts for 90% of all adult hearing problems and is caused by aging and noise. With sensorineural hearing loss:

  • There are problems with the cochlea and the auditory nerve.
  • Sounds not only diminish in volume, but become distorted.
  • High frequency sounds and some spoken words are first to go.
  • Low frequency sounds, such as vowels, are heard better.

This type of hearing loss can be treated with amplification (hearing instruments) and, occasionally, surgery. For more information about surgical procedures, consult a physician.

Mixed Hearing Loss

Both conductive and sensorineural hearing loss occurs at the same time.

How can I prevent hearing loss?

The easiest way to prevent hearing loss is to avoid unprotected exposure to loud noises, which can damage the nerve endings inside the cochlea. Studies show that prolonged exposure to sounds at or above 90dB can damage your hearing. Sounds at this volume can come from vacuum cleaners, lawnmowers, chainsaws or loud music. Always wear earplugs whenever your surroundings are so loud that you have to raise your voice to be heard.

 

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