Middle Ear
Current as of: October 21, 2018
Author: Healthwise Staff
Medical Review:Susan C. Kim, MD – Pediatrics & Kathleen Romito, MD – Family Medicine & E. Gregory Thompson, MD – Internal Medicine
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.