Causes of Hearing Loss

Sensorineural Hearing Loss

Sensorineural Hearing Loss is by far the most common category of hearing loss. This type of loss is typically caused by the destruction of vital hair cells in the cochlea in reaction to lengthy noise damage, ototoxic medications and aging process itself. In order to hear and understand sounds correctly, these hair cells must remain in optimal condition.

Our experience and training indicates that in 90% of cases, the best prescription to correct a sensorineural hearing loss is the fitting of appropriate hearing aids.

Following are some common causes of sensorineural hearing loss:

  • Diabetes
  • Heredity
  • Presbycusis or age-induced hearing loss
  • Lengthy and excessive exposure to noise in the workplace
  • Viral infections
  • Ototoxic drugs
  • Stroke
  • High fever
  • Ménière’s disease
  • Meningitis

Conductive Hearing Loss

Conductive Hearing Loss is usually the result of an obstruction in either the outer or middle ear. The obstruction can prevent sound from passing to the middle ear. To the individual with a conductive loss, sounds such as voices will sound too soft or distorted to hear clearly. Conductive hearing loss can typically be treated either medically or surgically.

Following are typical causes of conductive hearing:

  • Ear canal or middle ear infections can result in the buildup of fluid in the middle ear.
  • Damage to the eardrum caused by perforation or scarring on the eardrum.
  • Cerumen or earwax buildup in the ear canal.
  • Structural damage or dislocation of the Ossicles
  • Whether by accident or on purpose, foreign objects placed in the ear canal that obstructs sound.
  • An abnormal bony growth found in the middle ear.


Mixed Hearing Loss

Mixed Hearing Loss occurs when both conductive and sensorineural hearing losses are present together. For some individuals, hearing aids can help treat a mixed hearing loss.