After premature rupture of membranes, the amniotic cavity is directly connected to the woman's vagina at this time, which primarily poses the risk of infection. If the fetus becomes infected, it is easy to lead to sepsis after birth, resulting in an increased mortality rate for the fetus. Additionally, it can cause bleeding in the fetus. Moreover, for the mother, there is a likely risk of placental abruption, which is due to the reduced abdominal tension after membrane rupture, making placental abruption more likely to occur. Furthermore, the mother is also prone to infections, which can easily lead to chorioamnionitis under these circumstances.