A 27-year-old female asked:
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had ultrasound, baby reading 8wks with a very large sac. dr laughed n said we have a swimmer. is a large amniotic sac a cause of concern?

1 doctor answer
Dr. Roger Duvivier
46 years experience Obstetrics and Gynecology
Sac meaning unclear: If the sonographic measurements of your 8 week embryo, its cardiac activity and the yolk sac were all normal, there may be very little cause for alarm . At this early point in your pregnancy, measuring the size of the gestational sac may be quite imprecise and the meaning of a "very large sac" is rather unclear and is probably insignificant.
Answered on Aug 21, 2016
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