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Health A-Z

Medical Content Created by the Faculty of the
Harvard Medical School

How Do I Prepare?

If you think you might be pregnant, tell your doctor; it may be necessary to defer the procedure. Try to schedule the test for a day when you are not likely to be menstruating. For a day before the test, avoid having sexual intercourse and using any creams inside the vagina.

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.

You can find more great health information on the Harvard Health Publications website.