types of hearing loss

 

There are 3 types of hearing loss.
  • 1. Conductive
  • 2. Sensorineural
  • 3. Mixed (combination)
Conductive

The outer and/or middle ear are affected.

  • Occurs when sound is not transmitted to the inner ear effectively.
  • Common causes:
  • Fluid in middle ear
  • Otosclerosis (disease of the middle ear bones).
  • Earwax blockage.
  • Perforation of the ear drum.
Sensorineural
  • Occurs when there is damage to the cochlea or in the auditory nerve pathway to the brain. This is the most common form of hearing loss and it is permanent, and irreversible.
  • Hearing aids are commonly worn on individuals with sensorineural hearing loss in order to prevent further sensory deprivation, and assist with auditory nerve stimulation.
  • A very common cause of sensorineural hearing loss is aging.
Mixed
  • Mixed hearing loss occurs when there is damage in the outer or middle ear and the inner parts of the ear.