Is there a yolk sac, there must be a fetal heart bud?
Dr. Finley Lee
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2025-05-02 04:29:09
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The yolk sac does not always appear in pregnancy tests. It can be detected in early pregnancy by ultrasound. The yolk sac appears as long as the gestational sac develops normally, but it may not appear if the pregnant woman is exposed to chemical or radioactive substances or for other reasons.
