After the amniotic fluid breaks, whether the fetus is hypoxic needs to be judged by the speed and amount of amniotic fluid flow, not by time, and needs to be combined with fetal heart monitoring results to determine whether it is hypoxic. Amniotic fluid has a protective effect on the fetus and can maintain the constant temperature of the amniotic cavity. The right amount of amniotic fluid can avoid direct pressure on the fetus and umbilical cord by the uterine wall, which can cause fetal distress. Therefore, when the amniotic fluid ruptures, the amniotic fluid in the uterus gradually decreases to a certain level and causes fetal hypoxia. In addition, the rupture of amniotic fluid may also cause the umbilical cord to prolapse, resulting in fetal hypoxia, asphyxia, or even death. In general, it is important to end the delivery as soon as possible to avoid fetal hypoxia and intrauterine infection. If the water ruptures at home, you should go to the obstetrics and gynecology department of the hospital within 2-4 hours and adopt a lying position to minimize the flow of amniotic fluid.