Conductive Hearing Loss

Conductive Hearing Loss

A conductive hearing loss is a type of hearing loss. It occurs when the ability of transmission of sound waves from outer or middle ear to inner ear is reduced or blocked.  The blockage or damage is such that it prevents sound from getting passed into the inner ear (cochlea). In easier words, something is keeping sound from passing through the outer/middle ear to the inner ear and there is no problem in the inner ear.

Thus, even when the sound is loud enough, the individual hears it as soft or muffled.  It is generally of mild or moderate degree, ranging from 25 to 65 decibels. In some cases, a conductive hearing loss is temporary. It all depends on the specific cause of the problem (e.g. ear wax build-up). Therefore, it is important to know about conductive hearing loss and its causes.

It is temporary and removed by the medical treatment such as bone conduction hearing Aids, Bone Anchored Hearing Devices, and Middle Ear Implants. In conductive hearing disorder, It may be hard to hear low-frequency sounds and high-frequency sounds may be heard.

Causes of Conductive Hearing loss

  • Coagulation of earwax in outer ear cause blockage of the external ear canal.
  • Infection in the ear canal.
  • Fluid in the ear.
  • Tumors – Some time tumor block our outer or  middle ear
  • Infection in the ear canal.
  • Abnormal growth or overgrowth of bones in the middle ear such as Otosclerosis.
  • Hole in your eardrum.
  • Birth defects
  • Injury to the outer ear
  • Stiffening of the eardrum or middle ear bones
  • Ear infections
  • Blockage of the ear canal
  • Malformation of the outer ear, ear canal, or middle ear structures
  • Perforated eardrum
  • Allergies

The problem in the external ear

The external ear is in direct contact with the external environment and ear wax are mixed with dust and clotting on an external ear that block ear canal. It identified in medical examination and removed by cotton.

Otitis externa:  Its happen in swimmer’s ear as a result of infection in the ear canal that may be related to water. Symptoms of otitis externa are pain swelling occurred in the ear canal

Exostoses: It is a formation of the external bone outer surface of an ear that narrowing the ear canal. It is managed by regular cleaning of ear wax to prevent obstruction.

Atresia:  It is an abnormality in which the ear canal is completely closed. It is founded on breath and mostly on one side. It is managed by surgical treatment.

Problem in middle ear

The Fluid accumulation is the main reason for conductive hearing loss. It found especially in children. Fluid accumulation cause infection that blocks eustachian tube it also happens due to allergies or tumors.

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Conductive Hearing Loss
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Fortunately, a conductive hearing loss can be medically or surgically treated.

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