Why does embryonic arrest cause back pain?

Written by Du Rui Xia
Obstetrics
Updated on April 03, 2025
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After the embryo's development stops, the uterus will induce contractions, leading to pain in the lower back and abdomen, which is considered normal.

Following the cessation of the embryo's development, there will be episodic pain in the lower abdomen accompanied by back pain, primarily to facilitate the process of embryo cessation and to promote the expulsion of the gestational sac. In such cases, it is important to rest, observe the expulsion of embryonic tissue, and be mindful of vaginal bleeding. Rest should be prioritized, avoid overexertion, strengthen nutrition, maintain a regular routine, and, if necessary, undergo a uterine cleaning procedure.

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Written by Liu Wen Li
Obstetrics
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What happens if there is embryonic arrest without miscarriage?

If an embryo stops developing but is not miscarried, the retained embryonic tissue can disrupt the clotting function in the pregnant woman’s body over time, leading to a condition called a missed miscarriage. Therefore, after a missed miscarriage occurs, it is important to check the duration it has been retained. If it has been a considerable amount of time, clotting function should be examined. If clotting is still within normal ranges, it is crucial to expedite the process allowing the woman to expel the non-viable embryonic tissue as soon as possible, which is beneficial for her health.

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Written by Zhang Lu
Obstetrics
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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 Du Rui Xia
Obstetrics
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Will the embryo still grow if the embryo has stopped developing?

When embryonic arrest occurs, the embryo will no longer grow. There are many causes for embryonic arrest, such as congenital developmental defects of the gestational sac, abnormalities in the fertilized egg, congenital genetic diseases, and chromosomal abnormalities, all of which can easily lead to the cessation of embryonic development. At this time, regular observation of the embryonic tissue, which will no longer continue to grow and no fetal heartbeat is present, can confirm the condition of embryonic arrest. It is recommended to proceed with further treatment, such as medical abortion or surgical abortion. After the abortion, it is important to rest and enhance nutrition. It is also advised to have a thorough pregnancy check-up before the next pregnancy attempt to prevent recurrence of embryonic arrest.

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Written by Liu Wei Jie
Obstetrics
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Do you need to be hospitalized for uterine evacuation after a missed miscarriage?

The criteria for diagnosing embryo arrest generally involve the appearance of the embryonic bud and heart tube between six to eight weeks. If these are not visible beyond eight weeks, the situation is referred to as embryonic arrest. Embryonic arrest requires abortion, which for safety reasons typically involves hospitalization and a combination of medication and uterine evacuation. However, if the gestational sac is relatively small, an outpatient abortion procedure might be sufficient. Whether hospitalization is necessary should be assessed by a doctor, who will consider factors such as previous scar pregnancies, the condition of a scarred uterus, and the size of the current gestational sac, to make a comprehensive decision.

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Written by Zhao Li Li
Obstetrics
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Does an embryonic arrest still have pregnancy reactions?

After a normal miscarriage, hormone levels do not suddenly drop to a non-pregnant state, so pregnancy reactions may still occur. Simply based on the current state of pregnancy reactions, it is not possible to accurately judge the developmental condition of the embryo in the uterine cavity. It is still necessary to undergo regular prenatal checks after becoming pregnant and monitor the development of the embryo in the uterine cavity via ultrasound. If the embryo has already stopped developing, it is necessary to seek medical treatment for an abortion in a timely manner to avoid causing disorders in the body's coagulation function.