Otitis externa


Swimmer's ear (otitis externa) is an infection of the outer ear canal that runs from the eardrum to the outside of the head. It's often caused by water remaining in the ear after swimming. This creates a moist environment that helps bacteria grow.


A person may be prescribed eardrops and be advised to keep the ear dry.

Last Updated Jun 13, 2017

Content from Mayo Clinic ©1998-2019 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. Terms of Use