Umbilical cord knotting is mostly when the fetus moves in the uterus in a large range or when it is turned into a fetal position, such as when the head position is turned to the breech position or the breech position is turned to the head position. Although the probability of umbilical cord knotting is low and happens by accident, it still needs to be carefully monitored, otherwise it will cause serious consequences. The placenta provides nutrition and blood oxygen to the fetus through the umbilical cord. If the knot is loose, it often has no symptoms, and it is mostly found by accident after delivery. If the umbilical cord is tightly tied, the blood supply of the fetus will be reduced, or even the blood supply will be interrupted, which will cause more serious consequences, and sometimes even a sudden fetal death. This situation is often difficult to predict, and sometimes manifests as fetal movement abnormalities such as reduced fetal movement, but sometimes there is no obvious decrease in fetal movement. If the fetal heart rate monitoring is timely, you can catch the obvious abnormalities of the fetal heart rate monitoring, and you can deal with it in time to rescue the fetus, but sometimes the fetal heart rate monitoring is already in the fetal death. Therefore, babies with umbilical cord knots can be delivered safely and safely. Pregnant mothers should pay attention to self-monitoring at home. When there is a danger signal, they must go to the hospital in time for inspection!