Transvaginal Ultrasound: Yolk Sac Visibility & Early Pregnancy
A yolk sac should be visible on a transvaginal ultrasound at approximately 5-6 weeks of gestation. It appears as a small, round, anechoic structure within the gestational sac. The presence of a yolk sac is one of the early signs of a viable pregnancy.Infertility - Related Articles
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