Ask An Expert: Infertility Test and Menstrual Cycle

Content provided by the Faculty of the Harvard Medical School

Ask An Expert: Infertility Test and Menstrual Cycle

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Question:

Is it unusual to miss a period after having an HSG done, or should I contact my doctor?

Answer:

HSG stands for hysterosalpingogram. It is an X-ray test done to evaluate infertile women. A solution of dye is injected through the cervix into the uterus. Pictures are taken as the dye coats the lining of the uterus and flows out through the fallopian tubes. It is used to determine if there are abnormalities in the uterine lining such as polyps and fibroids. An HSG can also determine if there is blockage of the tubes, an important cause of infertility.

The risks of HSG are small, but include infection and injury to the uterus. The main benefit is the diagnostic information obtained about the state of the uterus and tubes so infertility treatment can be planned.

HSG may occasionally treat a tubal blockage by dislodging mucous or other material creating an obstruction. Pregnancy rates are increased during the first few months after women have the test. Although an HSG itself does not cause a woman to miss a period, a pregnancy occurring after an HSG would. You should contact your doctor for an evaluation including a pregnancy test.

Joan Bengtson, M.D., is assistant professor of obstetrics, gynecology and reproductive biology at Harvard Medical School and a member of the Department of Obstetrics, Gynecology & Reproduction at Brigham and Women's Hospital.

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Last updated:	June 22, 2007

Medical content reviewed by the Faculty of the Harvard Medical School. Harvard Health Publications, Copyright © 2007 by President and Fellows of Harvard College. All rights reserved. Used with permission of StayWell.

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