Rupture of the fetal membranes, commonly known as water rupture, occurs when the pressure in the amniotic cavity increases to a certain level, the membranes rupture and amniotic fluid flows out of the vagina. The exact time after rupture of membranes varies from person to person, and there is no exact time that ensures labor is complete. Most people go into labor within 12-24 hours, while others delay labor until a week after the water breaks. The rupture of membranes is considered normal as long as it occurs during labor. The onset of labor is signaled by the appearance of regular contractions that gradually increase in intensity, accompanied by the gradual disappearance of the cervical canal, dilatation of the uterine opening, and the descent of the baby’s first sign. Depending on the condition of the cervix and the state of the contractions, labor is usually completed and the fetus is born within 24 hours; it is also possible that the fetus has not been delivered for more than 24 hours, and it is recommended that a Caesarean section be considered in order to avoid infection. In case of premature rupture of membranes, i.e., the amniotic fluid breaks before the official onset of labor, the time of the baby’s birth is related to the speed of the pregnant woman’s emergence of contractions; in most cases, regular contractions can occur soon, and a few people do not have any change in contractions after the water breaks, and the birth of the fetus will take a longer time, during which time attention must be paid to strengthening the supervision to prevent the fetus from oxygen deprivation and other unforeseen circumstances, and to deal with them in a timely manner in order to avoid any dangers.