What will the fetal movement be like if the umbilical cord is wrapped around the neck?

Written by Du Rui Xia
Obstetrics
Updated on January 27, 2025
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Generally, when the umbilical cord is wrapped around the neck, it often does not affect the fetal movement or fetal heart rate changes. It is quite common for the cord to be wrapped around once, and if the wrapping is loose and does not affect the blood supply from the placenta, fetal movement will not change. However, if the cord is tightly wrapped multiple times, it can affect the blood supply of the umbilical cord and impact the fetal blood circulation, leading to frequent fetal movements. Therefore, pregnant women should learn to count fetal movements themselves to understand if the fetus is experiencing hypoxia in the womb.

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Written by Du Rui Xia
Obstetrics
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Does umbilical cord around the neck require a B-ultrasound recheck?

When there is a situation of umbilical cord around the neck, pregnant women need to regularly visit the hospital for an ultrasound checkup to understand the condition of the umbilical cord entanglement, mainly to monitor the umbilical blood flow. If there is an increase in umbilical blood flow, it indicates that the cord entanglement is tight, which can affect the baby's safety, potentially leading to lack of oxygen or suffocation. Therefore, in the late stages of pregnancy, it is also necessary to go to the hospital every 3-7 days for fetal heart monitoring to check if there is any lack of oxygen in the fetus while inside the womb. If there is fetal hypoxia in the late stages of pregnancy, it is advisable to terminate the pregnancy in a timely manner.

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Written by Zhang Yin Xing
Obstetrics
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How to prevent umbilical cord entanglement in late pregnancy

There are no effective prevention methods for nuchal cord, which is the most common form of umbilical cord entanglement where the cord wraps around the fetus's neck, limbs, or trunk. Nuchal cord occurs in 90% of these cases, frequently involving the cord wrapping around the neck once. This phenomenon can be observed in 20% of deliveries and is associated with factors such as an overly long umbilical cord, a small fetus, excessive amniotic fluid, and frequent fetal movements. An excessively long umbilical cord is mostly a physiological occurrence since the cord floats in the amniotic fluid and its actual length cannot be accurately measured, with no effective methods to prevent its occurrence. Excessive amniotic fluid and a small fetus are linked to certain pregnancy complications, such as diabetes-induced polyhydramnios and restricted fetal growth. Actively controlling blood sugar during pregnancy can prevent such issues. Frequent fetal movements are physiological for some pregnant women. Women who experience more frequent fetal movements throughout pregnancy are likely to encounter nuchal cord. Clinically, nuchal cord does not require special management unless it leads to obstructions in fetal descent, fetal distress, or variations in fetal heart rate. It does not impact delivery or fetal development.

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Written by Du Rui Xia
Obstetrics
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Can the umbilical cord unwrap itself after it has wrapped around the neck and entered the pelvis?

When the fetus has already engaged and there is nuchal cord occurrence, it is generally unlikely for the wrapping to unwind again. This is because once the fetus has engaged, the fetal position is fixed, and the fetus will no longer change its position, making the nuchal cord a more fixed condition. When dealing with nuchal cord, it is important to observe the number of loops and whether the tightness of the loops could impact the fetus. Therefore, it is necessary to regularly attend prenatal appointments at the hospital to monitor its developmental condition. If the nuchal cord loops just once around the neck, it usually does not affect the baby.

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Written by Liu Wen Li
Obstetrics
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Is there any danger in natural childbirth with the umbilical cord wrapped around the neck once?

Umbilical cord wrapping around the neck once is completely manageable with a natural birth, as it is very common in clinical practice, and many pregnant women with the umbilical cord wrapped around the neck have successfully delivered naturally. Even cases where the umbilical cord wraps around the neck twice, or even three times, can still undergo natural childbirth. Therefore, trying for a natural birth with the umbilical cord wrapped around the neck once is entirely feasible. Of course, during this process, it is necessary to monitor changes in the fetal heart rate or other conditions. As long as there are no issues with the fetal heart or other aspects, the mere fact of the umbilical cord being wrapped around the neck does not affect the delivery.

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Written by Du Rui Xia
Obstetrics
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Does the umbilical cord wrapping always involve the neck?

Umbilical cord entanglement around the neck usually occurs during the mid-pregnancy period, as this is when the baby moves more frequently. The baby has a larger range of movement within the uterine cavity, which can easily lead to the cord wrapping around the neck, abdomen, legs, or arms. Generally, if there is no cord entanglement found after 32 weeks of pregnancy, it is unlikely that it will occur. However, this is not certain. After the baby engages, which is after 35 weeks, the baby's position becomes fixed, and it is unlikely for cord entanglement to occur thereafter.