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Expert Q&A

 

By David L. Fay, M.D.
Family Physician
Associate Director, Waukesha Family Practice Residency Program

What is a blighted ovum and what causes it?

A blighted ovum is a fertilized egg which implants in the uterus, begins to devlop a gestational sac (the gestational sac eventually forms the membranes), but never develops a fetus. The cause is not known. These are eventually re-absorbed by the body, usually with a small amount of vaginal bleeding, and generally require no further treatment. A blighted ovum does not increase the risk of future miscarriage."

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