🦠microbiology review

Otitis media with effusion (OME)

Written by the Fiveable Content Team • Last updated August 2025
Written by the Fiveable Content Team • Last updated August 2025

Definition

Otitis media with effusion (OME) is an accumulation of fluid in the middle ear without signs of acute infection. It commonly occurs in children and can lead to hearing impairment if untreated.

5 Must Know Facts For Your Next Test

  1. OME is often caused by dysfunction of the Eustachian tube, leading to fluid buildup in the middle ear.
  2. Unlike acute otitis media, OME does not present with fever or severe pain.
  3. Bacterial pathogens such as Streptococcus pneumoniae and Haemophilus influenzae can contribute to OME.
  4. OME can lead to conductive hearing loss due to fluid interference with sound transmission.
  5. Diagnosis often involves otoscopy or tympanometry to detect fluid presence behind the eardrum.
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