One week of umbilical cord wrap around the neck at 23 weeks is usually not serious. Umbilical cord around the neck refers to the umbilical cord wrapped around the neck of the fetus, which may be caused by the umbilical cord is too long, amniotic fluid, small fetus and other reasons. When the ultrasound examination at 23 weeks of pregnancy indicates that the umbilical cord is wrapped around the neck of the fetus for one week, it is usually not serious when it is loosely wrapped, and there is still a possibility that it will return to normal due to the small size of the fetus at this time. However, when the umbilical cord is tightly wound, it may cause fetal distress and other risks that are serious. When the mid-pregnancy ultrasound suggests that the umbilical cord is wrapped around the neck, it is also necessary to assess the impact on the fetus by taking into account the tightness of the umbilical cord wrap, the number of weeks of wrapping, and the length of the umbilical cord, etc. It is also necessary to strengthen the monitoring of the pregnancy, and to strictly count the fetal movements by oneself, and go to the hospital in time for medical treatment when there is any abnormality. After entering the labor process, we should closely monitor the changes in fetal heart rate, and terminate the pregnancy in case of fetal distress.