Can medication completely clear an arrested embryo?

Written by Du Rui Xia
Obstetrics
Updated on March 28, 2025
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After confirming that there is an embryonic arrest, timely treatment should be carried out, which can be either medical abortion or curettage. If the pregnancy is less than 50 days, medical abortion can be an option. Afterwards, an ultrasound should be conducted to check if everything has been completely expelled. If no residues are found, no further treatment is required. However, if any residues are discovered, another curettage must be performed. Therefore, whether a medical abortion can be completely effective in cases of embryonic arrest depends on the gestational age at the time of the occurrence.

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Written by Du Rui Xia
Obstetrics
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What is the progesterone level for embryonic arrest?

When an embryo stops developing, the progesterone level will gradually decrease, but how much it can decrease is uncertain; it depends on the gestational age and individual differences. However, if an embryo stops developing, the progesterone level usually does not exceed 20. Therefore, during pregnancy, it is essential for pregnant women to maintain good living habits, avoid harmful factors, rest well, strengthen nutrition, abstain from sexual intercourse in early pregnancy, avoid misuse of medication, and be vigilant about symptoms like vaginal bleeding or abdominal pain.

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Written by Zhang Lu
Obstetrics
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Is embryonic arrest related to emotions?

Embryonic arrest refers to a condition during early pregnancy, around 9-10 weeks, where no fetal heartbeat is detected. In clinical practice, there are many causes of embryonic arrest, including chromosomal abnormalities, uterine malformations, infections, immune factors, and coagulation factors. However, many women do not investigate these reasons after experiencing embryonic arrest. Instead, they look for causes in their daily lives, such as dietary factors or emotional factors. In reality, embryonic arrest is generally not closely related to everyday life factors. Even if emotions fluctuate, such as becoming irritable or easily provoked, which might affect the gestational sac, such impacts usually manifest as symptoms of threatened miscarriage, but generally do not lead to embryonic arrest. Therefore, there is generally no correlation between embryonic arrest and emotional states.

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Written by Zhang Lu
Obstetrics
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Can a miscarried embryo be expelled naturally?

Embryonic arrest refers to the lack of natural development of the gestational sac in early pregnancy, characterized by the absence of a fetal heartbeat. If there is still no fetal heartbeat or embryo detected during an ultrasound at 8-9 weeks of pregnancy, it should be diagnosed as embryonic arrest. After embryonic arrest occurs, the vast majority require medical intervention. Of course, some cases of embryonic arrest can resolve naturally, leading to a miscarriage. However, this is not a reliable occurrence and is relatively rare in clinical practice. Moreover, the longer the wait, the greater the potential harm to the woman's health. For embryonic arrest, once diagnosed, it is urgent to intervene medically to remove the gestational sac from the uterus, minimizing harm to the woman. Common methods include medical abortion or a dilation and curettage surgery, either of which can be chosen.

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Written by Du Rui Xia
Obstetrics
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Does embryonic arrest definitely require a uterine curettage?

After embryo arrest, it is necessary to terminate the pregnancy in a timely manner, but it is not always necessary to undergo a uterine curettage; medication can also be taken orally to help expel the pregnancy sac. Oral medication can stimulate the uterus and soften the cervix to cause uterine contractions and expel the pregnancy sac outside the uterus. However, if the embryo arrest occurs later in the pregnancy, then an artificial abortion is required, which can be done by direct curettage or uterine clearing to help expel the pregnancy tissue. Therefore, it is recommended to go to the hospital for an ultrasound examination after embryo arrest, and then decide whether to choose medical abortion or uterine clearing based on the timing of the examination. (The specific medication should be taken under the guidance of a doctor.)

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Written by Du Rui Xia
Obstetrics
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How long does it take for a miscarried embryo to be expelled from the body?

After the embryo ceases to develop, some may naturally miscarry. Others may not be expelled naturally and require medical intervention for removal. After the embryo has stopped developing, the timing of expulsion varies from person to person due to different physical constitutions. Most women can naturally miscarry after the embryo stops developing, typically within about ten days when expulsion occurs. However, some embryonic tissue may be larger and adhere to the uterine cavity, preventing expulsion and causing continuous vaginal bleeding. In such cases, a visit to the hospital for an ultrasound is necessary, followed by medical abortion or a dilation and curettage procedure.