Types and causes

You are not alone: it is estimated that 10% of the world's population has a hearing loss

The three types of hearing loss

Everybody loses some hearing sooner or later. It's perfectly normal. In general, we talk about three types of hearing loss:

  • Neurosensineural hearing loss
  • Conductive hearing loss  
  • Retrocochlea hearing loss


Neurosensorial hearing loss - possible causes:


Hair cell damage owing to:

  • Age
  • Heritage
  • Increased intracochlear pressure
  • Noise exposure
  • Drugs

Conductive hearing loss - possible causes:

  • No ear canal
  • Perforated eardrum
  • Liquid in the middle ear
  • Inflammation
  • Fixed middle ear ossicles
  • Interrupted ossicle chain

Retrococlear hearing loss - possible causes:

  • Tumors
  • Brain haemorrhage
  • Fracture