Acute otitis media (acute ear infection) occurs when there is bacterial or viral infection of the fluid of the middle ear, which causes production of fluid or pus. Ear infections are most common following respiratory infections, or if the sinuses or eustachian tubes are blocked from allergies or enlarged adenoids.
Review Date: 9/15/2005
Reviewed By: A.D.A.M. Medical Illustration Team: Meredith Nienkamp, M.S.M.I., Dan Johnson, M.S.M.I., Lisa Higginbotham, M.S.M.I. Review also provided by VeriMed Healthcare Network.