Why are there still reactions when the embryo is arrested?

Written by Du Rui Xia

Obstetrics

Updated on November 05, 2024

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After an occurrence of embryonic arrest, some early pregnancy reactions in pregnant women will gradually ease but not disappear immediately. This is mainly related to elevated hormone levels in the body. Even after the embryonic arrest, the hormone levels in the body remain relatively high. As the arrested embryo is expelled from the body, the hormone levels will gradually decrease, and some early pregnancy reactions will also gradually ease. Generally, these adverse reactions will gradually ease and eventually disappear about a week after the embryo is expelled from the body.

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Written by Liu Wei Jie

Obstetrics

1min 6sec

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What are the reasons for two instances of embryonic arrest?

According to current medical viewpoints, there are various reasons for embryonic arrest, but in 50% of cases, the cause is unknown. Identified causes can generally be divided into several categories such as chromosomal issues, maternal metabolic issues including thyroid disorders, diabetes, and polycystic ovary syndrome. Additionally, immune factors such as lupus erythematosus or Sjögren's syndrome, along with abnormal antibodies, are also reasons. Furthermore, abnormal maternal anatomical structures, like abnormal uterine development, can lead to embryonic arrest. Paternal factors, such as abnormal sperm, can also result in embryonic arrest. Upon encountering embryonic arrest, if it occurs once, it can be observed initially. However, if there are two or more instances, comprehensive examinations for both partners are necessary, including chromosomal tests.

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Written by Zhang Lu

Obstetrics

58sec

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Is embryonic arrest common?

Embryonic Arrest, also known as missed abortion, refers to a condition in early pregnancy where the gestational sac does not develop normally. By the end of the ninth week of pregnancy, no definitive fetal heartbeat can be seen on an ultrasound. Recently, embryonic arrest has become relatively more common in clinical practice, primarily due to various life stresses and the impact of various chemicals. Additionally, the age at which women are having children is gradually increasing, with many women over 30, and even over 35, having their first child. These women, being older, tend to have poorer egg quality, thus increasing the likelihood of embryonic arrest. Women who have previously experienced embryonic arrest should make comprehensive pre-pregnancy preparations and undergo appropriate tests, as well as seek pre-pregnancy guidance to increase the chances of a successful future pregnancy.

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Written by Zhao Li Li

Obstetrics

54sec

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What will the vaginal discharge be like if the embryo stops developing?

During prenatal check-ups, if there are indications that embryonic arrest has occurred, timely symptomatic treatment is still necessary. Normally, embryonic arrest does not affect vaginal discharge, so the nature of the discharge alone cannot be used to determine whether the embryonic development in the uterus is healthy. After confirming embryonic arrest, it is generally advised to promptly undergo an artificial abortion to completely expel the embryo from the body, to avoid long-term retention which could lead to disorders such as coagulation dysfunction. After the miscarriage due to embryonic arrest, further examination to determine the specific cause of the arrest is necessary, in order to treat the condition promptly and appropriately.

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Written by Zhang Lu

Obstetrics

58sec

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Will the embryo still grow if the embryo has ceased development?

Embryo arrest, also known as missed abortion, refers to the condition in early pregnancy where, due to congenital developmental defects in the gestational sac or other influencing factors, natural development does not occur, resulting in the absence of a fetal heartbeat. Once embryo arrest has been diagnosed, the embryo generally does not continue to grow, because embryo arrest means that the gestational sac has died and is gradually decaying. If a subsequent ultrasound check reveals that the embryo may have grown slightly since the previous examination, this should not be considered as growth continuation of the embryo, but rather attributed to measurement error. Therefore, once embryo arrest is detected and meets diagnostic criteria, timely re-examination may show some lengthening of the embryo. However, in the absence of a fetal heartbeat, it still needs to be treated as embryo arrest, and an abortion procedure should be promptly performed.

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Written by Liu Wei Jie

Obstetrics

56sec

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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.