If the umbilical cord blood flow disappears the fetus may not survive if the cesarean section is not taken in time, so it is recommended that the cesarean section be taken in time at the doctor’s judgment, which may also improve the survival rate of the baby, and if the delay is longer, the disappearance of the umbilical cord blood flow may result in the stillbirth of the fetus. During pregnancy, the fetus meets its nutritional needs through the umbilical cord. If the umbilical cord blood flow disappears, it may be due to umbilical cord abnormality or fetal hypoxia, and it is recommended to terminate the pregnancy by giving oxygen or cesarean section under the judgment of the doctor, which may improve the survival rate of the fetus. If the umbilical cord blood flow disappears, it is recommended to go to the hospital in time for a comprehensive examination, and under the judgment of the doctor to clarify the cause of the disease and actively carry out the treatment, so as to avoid serious effects on the pregnant woman and the fetus.