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Health A-Z

Medical Content Created by the Faculty of the
Harvard Medical School

Diagnosis

A doctor can diagnose impetigo by looking at your skin. In rare cases, your doctor may swab the skin to obtain tissue and fluid that can be tested in a laboratory to identify the bacteria that caused the infection.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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