What should I do if the umbilical cord is wrapped around the neck once?

Written by Zhang Yin Xing
Obstetrics
Updated on December 04, 2024
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Umbilical cord wrapping around the neck once is a very common phenomenon, occurring in 20% of fetuses. When the umbilical cord wraps around the neck once, if the umbilical blood flow and fetal movements are normal, it indicates that the cord wrapping does not affect the fetus and will not have a direct impact on the fetus's intrauterine growth and development. However, during childbirth, attention must be paid to the possibility that the umbilical cord wrapping may cause difficulties in the descent of the presenting part of the fetus, leading to abnormal umbilical blood flow. If difficulties in the descent of the presenting part and changes in the fetal heart rate occur during delivery, the possibility of umbilical cord wrapping should be considered. If necessary, a cesarean section should be performed to terminate the pregnancy. There are no medications or other treatments that can alleviate umbilical cord wrapping; instead, enhanced prenatal monitoring is sufficient.

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Written by Du Rui Xia
Obstetrics
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The difference between a V-type and U-type nuchal cord.

When umbilical cord entanglement occurs, ultrasound examination may reveal a U-shaped or V-shaped entanglement. The V-shape and U-shape both indicate that the umbilical cord is wrapped around the neck once. In such cases, there is no need for excessive anxiety. Sometimes the cord may unwind by itself as the fetal position changes, loosening or alleviating the entanglement. It is important to regularly visit the hospital for prenatal check-ups, rest adequately, enhance nutrition, and adopt a left lateral position to improve placental blood supply.

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Written by Du Rui Xia
Obstetrics
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Can nuchal cord be corrected by lying prone?

Nuchal cord refers to a condition during pregnancy where the umbilical cord wraps around the fetus's neck or abdomen due to the baby's continuous movements and changes in position. Lying prone cannot correct a nuchal cord because the fetus can move freely within the womb. In some cases, the baby may even resolve the issue through its movements, so there is no need for excessive worry. It is only necessary to visit the hospital regularly for prenatal check-ups, follow the doctor's advice, and monitor the fetal heart rate. Generally, this does not cause any adverse effects.

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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.

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Written by Du Rui Xia
Obstetrics
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How to count fetal movements when the umbilical cord is wrapped around the neck

When there is nuchal cord presence, it is important to determine the number of loops around the neck as well as the tightness of the loops, to assess if they might affect the fetal heart rate. Generally, nuchal cords do not impact fetal blood circulation, so fetal movement can still be measured normally. Proper measurement should be taken at fixed times each day: morning, noon, and evening—for example, at 7 AM, 12 PM, and 9 PM respectively. During each of these times, select one hour when you can calmly and attentively feel and count the baby’s movements in a quiet setting, and record the number of movements.

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Written by Du Rui Xia
Obstetrics
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Can umbilical cord around the neck perform fetal position correction?

In cases of nuchal cord, it is not advisable to attempt correcting abnormal fetal positions, because if the fetal position changes abnormally after an attempted correction while the umbilical cord is wrapped around the neck, it may worsen the degree of the nuchal cord, potentially leading to fetal hypoxia or even asphyxiation. However, if the umbilical cord is relatively long, it might not affect the changes in fetal position, and sometimes the fetus can automatically free itself from the nuchal cord through its own movements. It is important to regularly visit the hospital for prenatal check-ups to detect any other potential abnormalities.