Most ear infections form in the middle ear. The eustachian tube carries fluid from the middle ear to the throat. Sometimes during a cold, the eustachian tube becomes swollen and fluid is trapped in the middle ear. Bacteria or viruses can grow in this fluid and form an ear infection.
Current as ofOctober 21, 2018
Author: Healthwise Staff Susan C. Kim, MD - Pediatrics Brian O'Brien, MD, FRCPC - Internal Medicine Kathleen Romito, MD - Family Medicine Charles M. Myer III, MD - Pediatrics, Otolaryngology E. Gregory Thompson, MD - Internal Medicine
Medical Review:Susan C. Kim, MD - Pediatrics & Brian O'Brien, MD, FRCPC - Internal Medicine & Kathleen Romito, MD - Family Medicine & Charles M. Myer III, MD - Pediatrics, Otolaryngology & E. Gregory Thompson, MD - Internal Medicine