Skip to main content
Intermediate Technical IVT

acute otitis media

Bacterial or viral infection of the middle ear space, common cause of fever and irritability in young children.

Full Definition

Acute otitis media (AOM) is one of the most common pediatric infections, involving inflammation and infection of the middle ear space behind the tympanic membrane. It typically affects children under 3 years due to immature eustachian tube anatomy and function. The condition is characterized by rapid onset of symptoms including otalgia, fever, and irritability. Diagnosis requires visualization of a bulging, erythematous tympanic membrane with purulent effusion.

Usage

Usage note: Distinguish from 'otitis media with effusion' (OME) which lacks acute infectious signs.

In Context

  • "Acute otitis media was diagnosed based on the bulging, erythematous right tympanic membrane." — Pediatric clinic note
  • "Current guidelines recommend watchful waiting for uncomplicated acute otitis media in children over 2 years." — Treatment protocol

Also known as

AOM middle ear infection

Contrasted with

chronic otitis media

Don't confuse with

otitis externa otitis media with effusion

Editors from these organisations have used our services since 1998

Reuters BBC Oxford University Press Penguin Random House Springer Microsoft Suncor Energy United Nations Fisher Investments IBM The Home Depot KODAK CHEVRON