Gestational sac

What does "Gestational sac" mean in a report or doctor's letter? In our medical dictionary, you will find a patient-friendly explanation of the meaning of this medical term.

Explanation

A gestational sac is a structure that forms inside the uterus in the early stages of pregnancy. It's like a small water balloon that holds the developing baby, or embryo. This sac is usually the first thing that can be seen on an ultrasound when confirming a pregnancy. It provides nourishment and protection to the embryo as it grows.

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