Causes of Hearing Loss

Causes of Hearing Loss

There are many types of hearing loss which can occure due to multiple causes, including genetics and acquired causes like noise and disease. Some hearing loss are successfully treated depending on the hearing loss type.

Conductive Hearing Loss

A conductive hearing loss is where the ear’s ability to conduct sound into the inner ear is blocked. Sound passes down the ear canal to the eardrum and through the middle ear, where the sound is transmitted across the middle ear by the three bones called the ossicles to the inner ear.

Causes of conductive hearing loss

  • Ear infection
  • Perforated eardrum
  • Benign tumors
  • Poor Eustachian tube function
  • Otosclerosis
  • Impacted earwax
  • Infection in the ear canal
  • Fluid in the middle ear from colds
  • Allergies
  • Foreign body in the ear

Sensorineural hearing loss

Sensorineural hearing loss occurs from damage to an individual’s inner ear (cochlea) or neural areas of the auditory system. In some cases, the cause cannot be determined. It is generally irreversible and permanent. These hearing loss are very common sensorineural results in a loss of loudness as well as a lack of clarity.

Causes Sensorineural hearing loss

  • Exposure to loud noise
  • Autoimmune inner ear disease
  • Hearing loss that runs in the family
  • Aging (presbycusis)
  • Meniere’s Disease
  • Tumors
  • Malformation of the inner ear
  • Head trauma
  • Virus or disease

Mixed Hearing Loss

Mixed Hearing Loss goes literally by its name “mixed” and is a combination of conductive and sensorineural hearing loss. It indicates that there is damage in outer, middle and inner part of the ear at the same time. Mixed hearing loss generally ranges from mild to profound severity. For people diagnosed with this problem, sounds can be both softer in volume and more difficult to understand.

Causes Mixed hearing loss

  • Genetic Factors
  • Overexposure to loud noise
  • Medications
  • Ageing process
  • Birth defects
  • Diseases
  • Infections
  • Tumor
  • Head Injuries

Neural Hearing loss

The least type of hearing loss is the Neural hearing loss. It takes place when the auditory nerve is damaged, missing or transmits information to the brain incorrectly. In order to recognize this type of hearing loss correctly, it needs in-depth testing and might include radiographic imaging. It’s impossible to identify the correct location of neural hearing loss using the current tests, thus frequent hearing monitoring is required for its. Otherwise, it damage ear permanently.

Causes of Neural hearing loss

  • Heredity
  • Acoustic tumors
  • Exposure to certain infections
  • Severe jaundice in infancy
  • Low birth weight
  • Premature birth
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