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Types and causes of hearing loss
There are many reasons why we lose our hearing. The good news is that if you have a hearing loss, you can do something about it.

Hearing loss causes 

There are many reasons why we lose our hearing, but the most common are prolonged exposure to noise and the aging process. Other causes include ear infections, genetic predisposition, head injuries and certain medications. When the ear does not function properly, the brain does not receive sounds to interpret.

Hearing loss is very often gradual, so we don’t always notice how sounds become fainter over time. We may even start forgetting some of the sounds we were once used to hearing.

Hearing loss has great impact on our family, social and work lives, as it interferes with the way we normally communicate, which is by speaking and listening. Therefore, hearing loss can be isolating. Those with hearing loss may begin to withdraw from social situations. 

The good news is that if you have a hearing loss, you can do something about it. Regular use of hearing aids can improve your relationships with others, make you more confident in social situations, and boost your overall life quality. Beltone hearing aids make conversations easy again and help you reconnect to your surroundings and start living life to the fullest again.   

Types of hearing loss

One of the effects of hearing loss is a reduced ability to distinguish speech from noise. This is why, if you have hearing loss, you may feel that you hear fine in quiet situations but not in noisy ones. It is also common that high-pitched sounds like birdsong may disappear altogether.

The causes of hearing loss vary and the type of hearing loss is determined by the part of the ear in which the impairment occurs. There are generally three different types of hearing loss:
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Conductive hearing loss

A conductive hearing loss is often temporary and can sometimes be corrected with wax removal, medication or surgery. Conductive loss stems from problems in the outer or middle ear and can be caused by:

  • Infection
  • Build-up of wax or fluid
  • Punctured eardrum
  • Otosclerosis – an abnormal bone development in the middle ear

Degrees of hearing loss

Measured in degrees, hearing loss is divided into levels that are based on a person's auditory thresholds, or the softest sounds (decibels), they can hear.

Hearing Degree of Loss Impact
Normal Hearing 0 to 25 dB Hearing is considered normal
Mild Hearing Loss 25 to 40 dB Difficulty hearing soft speech in noisy situations
Moderate Hearing Loss 40 to 60 dB Difficulty hearing moderate speech when background noise is present
Severe Hearing Loss 60 to 80 dB Difficulty hearing loud speech, but heard if amplified
Profound Hearing Loss 80 dB or more Difficulty hearing and understanding, even with amplification

Temporary hearing loss

There are times where a hearing loss is temporary. A temporary hearing loss is common and can be caused by any of the following:

  • Excessive earwax
  • Ear infections
  • Allergies
  • Sinus problems
  • Certain medications

To find out if you or someone you love has a hearing loss, please contact your local Hearing Care Professional. 

Hearing Care Professional
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