A two-week cord bypass is dangerous, but it needs to be analyzed on a case-by-case basis. In clinical cases where the fetus has a one-week cord winding, the risk is usually small and the pregnant woman is usually advised to count the fetal movements herself. However, if the umbilical cord is wrapped around the fetus for two weeks or more, the risk is relatively high. The average length of the umbilical cord is about 50cm, and if the cord is wrapped around the neck twice, there may be poor blood flow, resulting in lack of oxygen in the fetus. Pregnant women in this category need to pay attention to fetal movement, and if they find abnormal fetal movement, such as a sudden increase or decrease in fetal movement, go to the obstetrics and gynecology department of the hospital for examination in time. If the fetal movement is within the normal range, monitoring of the fetus can be strengthened. With fetal activity, some fetuses can change from two weeks to one week or no encirclement on their own. It is recommended that pregnant women have regular maternity checkups and learn to count fetal movements under the guidance of doctors in order to effectively detect intrauterine hypoxia and other conditions in time.