What causes perforation of tympanic membrane in myringitis?

Updated: Sep 14, 2020
  • Author: John Schweinfurth, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Perforation of the tympanic membrane

  • In untreated patients, as middle ear pressure increases, the TM eventually perforates, pain decreases, and mucopurulent discharge with blood appears in the EAC.

  • In cases of favorable cessation of AOM, the inflammatory process and all the inflammatory phenomena gradually regress with restoration of the TM and normal hearing.

  • Similar phenomena occur in cases of viral myringitis (influenza). With viral myringitis, as with acute bullous myringitis, bubbles filled with blood form on the surface of the TM and burst with effusing blood; however, the TM is not perforated.

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