The causes of one week umbilical cord bypass are related to long umbilical cord, small fetus, excessive amniotic fluid and frequent fetal movements. Once such a situation is found, pregnant women can do gentle exercises such as walking and yoga exercises during pregnancy, because when the fetus is not breathing well in the pregnant woman’s womb and lacks oxygen, it tends to move around and thus the umbilical cord is wrapped around the neck. Pregnant women should carefully count the number of fetal movements, too frequent fetal movements or reduced fetal movements, may be fetal intrauterine hypoxia, promptly go to the hospital to clarify the cause. Pregnant women usually take the left side position can increase the placental blood supply, not only to reduce the fetal intrauterine hypoxia, but also to avoid supine hypotension, and effectively promote the body’s blood circulation. Pregnant women should also regularly check the condition of the fetus and seek medical attention when problems are detected.