Does an embryonic arrest require a uterine curettage?

Written by Du Rui Xia
Obstetrics
Updated on April 07, 2025
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After discovering that the embryo has ceased developing, it is necessary to undergo a uterine cleaning treatment. If an embryo arrest is not dealt with promptly, it can cause an infection in the uterine cavity and even lead to abnormalities in the woman's coagulation function, which is very detrimental to health. However, a uterine cleaning is not always necessary.

If the gestational sac is relatively small, medications can be used to induce contractions of the uterus, facilitating the expulsion of the gestational sac from the body. It is advisable to handle the situation promptly after discovering an arrested embryo and to perform thorough prenatal screenings before attempting to conceive again, to prevent the recurrence of such adverse pregnancy conditions.

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Written by Du Rui Xia
Obstetrics
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What will happen if a miscarried embryo is not removed from the uterus?

After embryonic arrest occurs, it is necessary to handle it promptly, which involves expelling the embryo from the body. If the embryo remains for an extended period without timely intervention, it can easily lead to an infection in the uterine cavity, or even sepsis. The fetus may adhere to the uterine wall, making it difficult to clean later and can easily cause severe bleeding, seriously endangering the patient's life. Therefore, once we identify that an embryonic arrest has definitely occurred, it is crucial to undergo prompt uterine cleaning treatment. It is advisable to communicate with the hospital doctors and take appropriate measures.

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Written by Liu Wei Jie
Obstetrics
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Embryonic arrest generally occurs at what time?

First, let's discuss what embryonic arrest means. There are two scenarios of embryonic arrest. The first scenario is where the embryo initially does not develop well, leading to the cessation of development in the very early stages of pregnancy. The second scenario occurs when the embryo initially develops well, but after a period, embryonic arrest happens. Therefore, embryonic arrest generally occurs during early pregnancy but can also occur later, around the middle of early pregnancy. It can happen at any time, but it is most commonly identified after 8 weeks. However, some cases involve the presence of an embryonic bud and heart tube, and embryonic arrest can still occur even at 10 or 11 weeks.

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Written by Du Rui Xia
Obstetrics
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What are the reasons for embryonic arrest with no fetal heartbeat?

Embryonic arrest without a fetal heartbeat can be caused by many factors. For example, taking medications prohibited during pregnancy, exposure to harmful substances, radiation, or infections with bacteria or viruses during pregnancy. Other factors include genetic issues and poor emotional state of the pregnant woman during pregnancy. All these factors can affect the normal development of the embryo. If an ultrasound examination reveals no fetal heartbeat, it can be determined that the embryo has ceased to develop, and prompt treatment should be carried out.

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Written by Liu Wen Li
Obstetrics
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Is hospitalization necessary for embryonic arrest?

This is not necessarily the case; it depends on the specific situation. Firstly, we need to consider the timing of the embryo arrest. If the embryo arrest occurs within 70 days of pregnancy, generally, hospitalization is not needed, and a miscarriage can often be handled on an outpatient basis. However, if the embryo stops developing after 70 days of pregnancy, even reaching three or four months, then hospitalization is required for a induced labor. This is because the fetus is relatively larger, making outpatient treatment problematic and riskier. Additionally, we must also consider if the pregnant woman has any complications. If there are complications alongside the embryo arrest, it is generally safer to be hospitalized.

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Written by Zhao Li Li
Obstetrics
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How to handle bleeding due to embryonic arrest?

If it has already been determined that the embryo has ceased to develop and significant vaginal bleeding has occurred, it is likely that the bleeding is caused by uterine contractions stimulated by the halted embryonic development. In this case, it is first necessary to seek medical attention promptly. After confirming the halted development of the embryo, it is important to perform a surgical abortion promptly to completely remove all tissues associated with the ceased embryonic development, reducing the occurrence of post-abortion bleeding. After the surgery, it is also necessary to promptly use antibiotics to prevent infections within the uterine cavity.