Home / Glossary Cord knots By Motherly Editors April 2, 2024 Rectangle Inside this article DefinitionKey TakeawaysImportanceExplanationExamples of Cord knotsFAQs About Cord KnotsWhat are cord knots?How do cord knots form?Are cord knots dangerous?How are cord knots detected?How are cord knots treated?Related Motherhood TermsSources for More Information Table of Contents Toggle DefinitionKey TakeawaysImportanceExplanationExamples of Cord knotsFAQs About Cord KnotsWhat are cord knots?How do cord knots form?Are cord knots dangerous?How are cord knots detected?How are cord knots treated?Related Motherhood TermsSources for More Information Definition Cord knots refer to a condition in which the umbilical cord of an unborn child forms one or more knots. This can occur naturally as the baby moves around in the womb. These knots can restrict blood flow and nutrients to the baby, potentially causing complications if not monitored and addressed. Key Takeaways Cord knots refer to the knots that can form in the umbilical cord during pregnancy. These knots can potentially disrupt the baby’s supply of oxygen and nutrients. True knots are rare, occurring in about 1% of pregnancies, but they may increase the risk of complications such as cerebral palsy, fetal growth restriction, and stillbirth. The majority of cord knots are discovered during labor and monitored with careful interventions like a caesarean section may be required if the knot tightens. Detection before birth with a detailed ultrasound can help to manage it better. Importance Cord knots, also known as true knots in the umbilical cord, is a significant term in motherhood because it relates directly to the health and safety of the fetus during pregnancy. A true knot occurs when the umbilical cord, which connects the fetus to the mother’s placenta, forms a loop and passes through itself, creating a knot. This can happen when the fetus moves around during pregnancy. Although cord knots are relatively rare, they carry a potential risk of complications because they can restrict the supply of oxygen and essential nutrients from the mother to the fetus, which could lead to health problems or even death of the fetus. Therefore, it is crucial for health care providers to monitor for the possibility of cord knots during prenatal care. This condition is usually diagnosed through ultrasound and careful monitoring during labor is necessary if a cord knot is present. Explanation Cord knots, also known as true knots in the umbilical cord, often occur during pregnancies notably when the baby is very active in the womb. The primary purpose of the umbilical cord is to act as a conduit between the mother and the fetus, providing necessary oxygen and nutrients to the developing baby. Thus, when knots occur, they can potentially disrupt this critical flow of nutrients, causing potential problems. However, it’s important to note that these knots are not always harmful and many babies born with true knots show no associated ill effects. In terms of its usage in motherhood and pregnancy, a knot in the cord often serves as a cautionary signal to medical professionals during the birth process. Regular fetal monitoring allows for the early detection of such complications. Should a cord knot be detected, the health care provider will monitor the baby’s heart rate closely during labor, as cord knots can tighten during contractions and cause fetal distress. In some instances, the detection of a serious umbilical cord knot may lead healthcare providers to opt for a cesarean section birth to ensure the safety of the mother and child. Thus, cord knots play a significant role in assessing potential issues during pregnancy and influence birthing decisions. Examples of Cord knots In 2007, a woman named Sarah Norton from Massachusetts was 37 weeks pregnant with her second child when she suddenly felt something wrong. She rushed to the hospital where the doctors performed an emergency cesarean. It turned out that her baby’s umbilical cord had somehow knotted itself, threatening the baby’s supply of oxygen and nutrients. Thankfully, both mother and baby made it through safely. In 2015, a woman in California gave birth to her baby boy who was quickly diagnosed with brain damage due to hypoxic-ischemic encephalopathy. The medical team discovered that the umbilical cord was knotted and furthermore, twisted around the baby’s neck, which significantly restricted the essential flow of oxygen and nutrients leading to the brain damage. Lisa Cox, a woman from the UK, was pregnant with her second child when she was told during a routine ultrasound that her baby’s umbilical cord had a knot in it. The doctors monitored her closely, ready to perform an emergency c-section if the baby showed any distress. After a few weeks of careful monitoring, Lisa gave birth to a healthy baby girl through a successful cesarean section. FAQs About Cord Knots What are cord knots? Cord knots, also known as umbilical cord knots, are knots that form in the baby’s umbilical cord during pregnancy. They can be loose or tight and are relatively common, occurring in about 1 in every 100 pregnancies. How do cord knots form? Cord knots form when the baby moves around in the amniotic sac and passes through a loop in the umbilical cord. Depending on the baby’s movements, a knot can form in the cord. Are cord knots dangerous? Most cord knots are not dangerous and do not cause any problems. However, in rare cases, a tight knot can cut off blood flow to the baby and cause complications. This is why ultrasound scans during pregnancy are important for checking the cord for knots. How are cord knots detected? Cord knots are often detected during routine ultrasound scans. If the healthcare professional suspects a cord knot, they may use more detailed ultrasound scanning or a Doppler scan to examine the cord more closely. How are cord knots treated? In most cases, no treatment is required for cord knots as they do not usually pose a risk to the baby. However, in cases where a knot is tight and restricting blood flow, immediate delivery might be necessary. This decision will be made based on the healthcare provider’s assessment of the situation. Related Motherhood Terms Umbilical cord complications Intrauterine growth restriction (IUGR) Nuchal cord Fetal distress Emergency cesarean section Sources for More Information Verywell Family – An excellent resource for all things related to family health and well-being, including topics on pregnancy and childbirth. March of Dimes – A nonprofit organization focusing on improving pregnancy and baby health, offering a vast amount of information on a wide variety of related topics. Mayo Clinic – A reliable source for health-related information, including in-depth articles and research findings on a wide range of topics related to pregnancy and premature birth. WebMD – A trusted source for health information, offering accurate coverage of topics ranging from basic health advice to detailed medical research. Inside this article DefinitionKey TakeawaysImportanceExplanationExamples of Cord knotsFAQs About Cord KnotsWhat are cord knots?How do cord knots form?Are cord knots dangerous?How are cord knots detected?How are cord knots treated?Related Motherhood TermsSources for More Information More terms Active Motion April 2, 2024 Premature April 2, 2024 Tummy Time February 26, 2024 Etiology April 2, 2024 Labor-delivery-recovery room (LDR) April 3, 2024