Ear deafness or hearing loss
Ear deafness or hearing loss


Ear Deafness or Hearing loss is a common symptom of ear disease. Ear Deafness is the inability to hear or hearing loss. Ear Deafness may vary from minor as you notice to complete hearing loss, therefore this disease or hearing loss may be partial to complete.


This disease  is classified according to the severity, the classification is as following:

Classification of Ear Deafness or hearing loss

  • Normal hearing           Upto 25 dB
  • Mild                                  26 – 40 dB
  • Moderate                       41 – 55 dB
  • Moderately Sever       56 – 70 dB
  • Sever                                71 – 91 dB
  • Stone                               Greater than 91 dB

This disease is classified in four types of ear deafness, which are as follows:

  1. Conductive
  2. Neural-Sensory
  3. Mixed

Conductive Ear Deafness:

In this type the sound hears quieter but not distorted. The qualities of sound from other sources are quieter but you will hear your voice very clear, this may be because of a sufficiently large blockage in the passage of sound and your eardrum. The common causes of  are:

  • Ear wax or Impected Wax
  • Large Boil
  • Large foreign Body
  • Otitis media with effusion
  • Eustachian tube dysfunction
  • Otomycosis
  • Congenital atresia
  • Tumours
  • Acute and Chronic suppurative otitis  media
  • Trauma
  • Otosclerosis and Tympanosclerosis
  • Latrogenic

Neural-Sensory Ear Deafness:

This type have two parts, Neural  and Sensory . In this the sound hears quieter and distorted. This distortion occurs in high frequency sound, which reduces the ability to understand the sounds. Distortion of sound is more distinct in the neural ear deafness than the sensory ear deafness. In sever cases you may not hear your own voice which makes your speech without any expression.

The causes of Neural-Sensory Ear Deafness are as follows:

  • Perilymph fistula
  • Congenital Causes
  • Blast injuries
  • Labyrinthitis
  • Acoustic neuroma
  • Ototoxicity
  • Mebeire’s disease
  • Trauma
  • Acoustic Truma
  • Noise include hearing loss (NIHL)
  • Presbyacusis

Mixed Ear Deafness:

There are some disease which cause both Conductive and Neural-Sensory ear Deafness, like Otosclerosis which initially cause conductive ear deafness but this disease in later stage cause neural-sensory ear deafness.


Related Topics

What is Ear pain?

What is Ear Deafness?



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