Can ultrasound detect nuchal cord?

Written by Du Rui Xia

Obstetrics

Updated on September 19, 2024

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During the color ultrasound examination, it is possible to detect whether the fetus is experiencing umbilical cord entanglement around the neck. If the ultrasound shows a V-shaped echo around the fetal neck, it generally indicates that the umbilical cord is wrapped around once. If the echo is W-shaped, then the cord is wrapped twice. If the cord is wrapped multiple times, the echo will appear serrated. Additionally, the color ultrasound can also assess the blood flow around the umbilicus to determine the presence of umbilical cord entanglement. If cord entanglement is detected, it is recommended to have regular ultrasound check-ups at the hospital to monitor the fetus's safety in the uterus.

Other Voices

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Written by Liu Wen Li

Obstetrics

59sec

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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 Zhang Lu

Obstetrics

58sec

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

During the prenatal ultrasound, it is sometimes discovered that the umbilical cord is wrapped around the fetus's neck, which concerns many pregnant women who fear it may cause fetal hypoxia in utero or affect natural childbirth. However, this concern is not accurate. Currently, in clinical practice, an umbilical cord around the neck is considered a normal physiological phenomenon. Around 30%-40% of fetuses may have the umbilical cord wrapped around their neck. It is acceptable for the umbilical cord to be wrapped around the neck once or twice, as this neither impacts the fetus's oxygen levels nor affects the mode of childbirth; natural birth can still be considered. Therefore, when the umbilical cord is wrapped around the neck once, no intervention is required. Follow the normal prenatal check-up routine and pay attention to fetal movements in daily life. As long as the fetal movements are normal, it indicates that the fetal condition in the uterus is good.

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Written by Zhang Yin Xing

Obstetrics

1min 24sec

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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

47sec

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Is climbing stairs useful for umbilical cord around the neck?

When there is a situation with the umbilical cord wrapped around the neck, pregnant women should absolutely not blindly try certain exercises, such as climbing stairs, which actually have no scientific basis. Doing so not only fails to alleviate the condition of the cord being wrapped but might even increase the baby's activity, leading to a more serious entanglement. During the mid-stage of pregnancy, pregnant women should pay attention to rest, avoid exhaustion, and sometimes the baby's movements might even resolve the wrapping of the cord. Therefore, it is important to take scientific care during pregnancy and follow the doctor's advice, and not to engage in any exercises on one's own.

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Written by Du Rui Xia

Obstetrics

44sec

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Can I walk for an hour after meals if the umbilical cord is wrapped around the neck?

In cases where there is umbilical cord entanglement around the neck, as long as the baby's fetal heart rate and fetal movement checks are normal, the mother can normally go for a walk after meals. This condition will not affect the fetus. It is important to regularly visit the hospital for fetal heart monitoring and prenatal examinations, pay attention to observing changes in fetal movement inside the womb, and avoid doing overly heavy or intense exercises. If any abnormalities in fetal movement or heart rate are observed, it is necessary to go to the hospital for examination. When needed, oxygen intake and treatments to preserve the pregnancy might be required.