Sudden deafness

Sudden deafness is an unexplained sudden loss of hearing.


Sudden deafness is an unexplained sudden loss of hearing. Other symptoms such as a feeling of ear fullness, tinnitus or dizziness can also occur. Sudden deafness isn't an emergency, but a doctor should be consulted reasonably quickly.


Main symptoms

  • Sudden loss of hearing

Spontaneous recovery of hearing frequently occurs, but no prognosis can be made as to when and to what extent hearing will improve.

Other symptoms

Causes and treatment


  • The exact cause is unknown. Suspicions include:
    • Impaired circulation in the inner ear
    • Functional impairment of the hearing organ in the inner ear
    • Inflammation of the inner ear

Further treatment by your doctor / in hospital

Possible tests
  • Ear examination (otoscopy)
  • Hearing test (audiometry)
  • Blood test (if infection is suspected)
  • MRI (magnetic resonance imaging)
Possible therapies
  • Cortisone tablets

When to see a doctor?

  • Sudden loss of hearing

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CSS offers no guarantee for the accuracy and completeness of the information. The information published is no substitute for professional advice from a doctor or pharmacist.

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