When preterm premature rupture of membranes occurs, it can have certain impacts on both the pregnant woman and the fetus. The risks of preterm premature rupture of membranes primarily include the possibility of umbilical cord prolapse, preterm birth, or infection during pregnancy. If the presenting part of the fetus has not descended and the umbilical cord slips into the vagina, umbilical cord prolapse can easily occur, which is very dangerous and can lead to fetal hypoxia or even stillbirth. After the rupture of membranes, bacteria originally present in the vagina may take this opportunity to enter the uterus, causing chorioamnionitis or endometritis. If the infection is not controlled in time, sepsis may also occur.