Phonak Cochlear Implants
Hearing & Hearing Loss


Hearing & Hearing Loss


What Causes A Hearing Loss

  • Long-term exposure to noise
  • The normal aging process
  • Parents or family members that have hearing problems
  • Infections and illness
  • Reactions to medications
  • Injury
  • Ear Wax
Types and symptoms of hearing losses:
  • Mild hearing loss
    Unable to hear soft sounds and difficulty understanding speech in noisy environments.

  • Moderate hearing loss
    Unable to hear soft and moderately loud sounds, considerable difficulty in understanding speech, particularly with background noise.

  • Severe hearing loss
    Unable to hear most sounds. Speakers must raise their voice / shout to be heard. Group conversations is possible only with considerable effort.

  • Profound hearing loss
    Some very loud sounds are audible but communication without a hearing instrument is very difficult.


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