Fetal hypoxia can occur if labor does not occur, usually 24 hours after the water breaks. How long the fetus will be hypoxic after the water breaks depends on the amount of amniotic fluid and the speed at which the amniotic fluid flows out, which varies individually. If the amount of amniotic fluid is high and the rate of outflow is slow, then the fetus is not prone to hypoxia. On the contrary, if the amniotic fluid flows out quickly, then the fetus is at risk of developing hypoxia in a short period of time. Normally, if the water breaks and the baby is not delivered within 24 hours, hypoxia can occur. It is important to intervene as soon as the water breaks. For full-term pregnant women with a ripe cervix, if there are no regular contractions after the water breaks, oxytocin can be used to speed up labor as appropriate and as prescribed by the doctor to prevent intrauterine hypoxia. After the water breaks, you should elevate your buttocks to help reduce the outflow of amniotic fluid and reduce the risk of fetal hypoxia, and you need to go to the hospital in time to see a doctor and monitor the fetal heartbeat, and the doctor will choose the appropriate treatment according to the gestational week. Do not self-medicate to avoid adverse effects.