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Understanding Hearing Loss

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Understanding Hearing Loss

Hearing loss is when your ability to hear is reduced. A hearing loss makes it more difficult for you to hear, speech and other sounds. There are three types of hearing loss.

Conductive Hearing Loss

Conductive hearing loss occurs when sounds cannot get through the outer and middle ear. It may be hard to hear sounds. Louder sounds may be muffled. Because of blockages or damages of anatomical structures in the outer ear or middle ear. Hearing loss range will be from mild to moderate and it will be depending on the cause, age etc.,

Causes of Conductive Hearing Loss

  • Fluid in your middle ear from colds or allergies.
  • Ear infection, or otitis media
  • A hole in your eardrum.
  • Benign tumors. These tumors are not cancer but can block the outer or middle ear.
  • A problem with how the outer or middle ear is formed. Some people are born without an outer ear. Some may have a deformed ear canal or have a problem with the bones in their middle ear.

Sensorineural Hearing Loss

Sensorineural hearing loss, or SNHL, happens after inner ear damage. Problems with the nerve pathways from your inner ear to your brain can also cause SNHL. Soft sounds may be hard to hear. Even louder sounds may be unclear or may sound muffled.

This is the most common type of permanent hearing loss. Most of the time, medicine or surgery cannot fix SNHL. Hearing aids help you hear.

Causes of Conductive Hearing Loss

  • Illnesses.
  • Drugs those are toxic to hearing.
  • Aging.
  • Meniere's disease
  • Acoustic Neuroma S

Mixed Hearing Loss

Mixed Hearing Loss is a Hearing Loss condition when both the components of Conductive Hearing Loss and Sensorineural Hearing Loss are present. It is caused by the combination of Conductive damage in the outer or the middle ear and sensorineural damage to the inner ear or the auditory nerve. Mixed Hearing Loss can affect either one ear or both ears.

Causes of Mixed Hearing Loss

Anything that causes a conductive hearing loss or SNHL can lead to a mixed hearing loss. An example would be if you have a hearing loss because you work around loud noises and you have fluid in your middle ear. The two together might make your hearing worse than it would be with only one problem.

  • Traumatic injuries in accidents that damage the inner ear or the auditory nerve.
  • An excessive dosage of the Ototoxic drugs
  • Abnormality of the outer ear, ear canal, or middle ear structure
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