Normally the empty gestational sac does not keep growing. If a pregnant woman has an ultrasound that indicates the presence of a gestational sac during a labor and delivery examination, but no fetal buds or heart tube pulsations appear in the sac cavity, this is called an empty gestational sac, and is generally indicative of embryonic arrest. The empty sac will temporarily regress and increase in size after the embryo stops developing, but it will not keep growing. It is generally recommended that pregnant women with empty sacs should have a repeat ultrasound in one week. If there are still no buds, no heart tube pulsations, and a significant decrease in the rate of increase of blood HCG (human chorionic gonadotropin), it is suggestive of cessation of the embryo’s development, and the size of the empty sacs will also gradually decrease. If a pregnant woman has an empty sac or an embryo that has ceased to develop during a labor and delivery test, it is recommended that she seek medical attention. Although the empty sac will not keep growing, it still needs to be treated in time. It is recommended to use medication under the guidance of the doctor, such as mifepristone tablets, or clear the uterus to induce labor to avoid causing abortion bleeding or infection.