What causes Otosclerosis?

Otosclerosis is most often caused when one of the bones in the middle ear, the stapes, becomes stuck in place. When this bone is unable to vibrate, sound is unable to travel through the ear and hearing becomes impaired.

The inciting stimulus for the abnormal bone remodeling in otosclerosis is unknown and has been attributed to both genetic and environmental factors. Genetics play a role in the etiology of otosclerosis, the familial aggregation of individuals affected by otosclerosis has been well noted.

Recent findings suggest an association between the measles virus and otosclerosis. Whether the measles virus is factor that can initiate the otospongiotic process remains to be determined. However, current efforts to immunize against this virus would be expected to drastically reduce the incidence of otosclerosis.

  • What is Otosclerosis?
  • How do we hear?
  • What causes Otosclerosis?
  • Symptoms of Otosclerosis?
  • How is Otosclerosis diagnosed?
  • Genetics Factors & Natural History
  • How is Otosclerosis treated?