Whether to opt for cesarean or vaginal delivery for preterm birth needs a comprehensive grasp of the pregnant woman's entire condition before assessing and deciding on the mode of childbirth. First, it's necessary to check if the woman has any complications and the severity of these complications, as well as whether her physical condition allows for vaginal delivery. Additionally, the changes in fetal heart rate must be considered. If the fetal heart rate is particularly poor, and the duration of vaginal delivery is long such that the child cannot endure it, then a cesarean section may be needed. Beyond these conditions, it is also important to evaluate the state of the pelvis, the size of the fetus, and the condition of the cervix. Generally, if vaginal delivery is possible for preterm births, it is still encouraged.