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Smyrna, GA
A 29-year-old female asked:

Is having a marginal previa/low-lying placenta considered high risk?

2 doctor answers4 doctors weighed in
Dr. Marilynn Frederiksen
Maternal-Fetal Medicine 47 years experience
Marginal previa: A marginal previa or a low lying placenta is usually diagnosed by ultrasound. Early in a pregnancy ultrasound can over diagnose the condition. Risk will depend upon whether you have had any bleeding with the diagnosis. A 28 week ultrasound is usually recommended to better visualize where the placenta actually is.
Dr. Brian Nguyen
Obstetrics and Gynecology 11 years experience
Yes: Previa: Placenta overlies the cervix/birth canal. Gr 1 means placenta is close, Gr 4 means it's directly overlying/blocking the baby's exit -- high chance of preterm labor & bleeding; you'd need a C/S at 36-37wks. More common in woman w/ hx of C/S & smoking. Not much you can do but wait. If dx'ed early, the uterus still grows/stretches and a placenta can migrate away even in 3rd tri. Follow w/ US.

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Last updated May 30, 2015

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