First, let's discuss the concept of preterm birth, which is defined as births occurring between less than 37 weeks and more than 28 weeks of gestation. There are many reasons for preterm birth, such as genetic factors, premature rupture of membranes, or complications during pregnancy. If the pelvic size is adequate and the child can tolerate delivery, then vaginal delivery is preferred; however, if the fetus is too small or there are complications during pregnancy such as gestational hypertension, gestational diabetes, or if the mother's health status is not good, it is recommended to opt for a cesarean section to ensure a timely delivery.