Middle EarMost 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. ByHealthwise Staff Primary Medical ReviewerSusan C. Kim, MD - Pediatrics Kathleen Romito, MD - Family Medicine Specialist Medical ReviewerE. Gregory Thompson, MD - Internal Medicine Current as of:
May 4, 2017 Author:
Healthwise Staff Medical Review:
Susan C. Kim, MD - Pediatrics & Kathleen Romito, MD - Family Medicine & E. Gregory Thompson, MD - Internal Medicine
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