At 39 weeks of pregnancy, it depends on the pregnant woman’s pelvis, the presence of pregnancy complications, the size of the fetus, the orientation of the fetus, etc. to see whether it is a normal delivery or cesarean section. At 39 weeks of pregnancy, if there is no pelvic deformity, uterine deformity, uterine fibroids, vaginal longitudinal obstruction and other soft obstruction diseases, the fetus is not a huge baby, the fetal position is normal, the pregnant woman is not a senior pregnant woman, and there is no pregnancy complications such as gestational hypertension, gestational diabetes mellitus, placenta praevia, etc., then most of the pregnant women can have a normal delivery. If there is a small pelvis, male pelvis, etc., the fetus may not be able to pass through the bone birth canal smoothly, and a cesarean section is needed to end the pregnancy. In cases of placenta previa, placenta praevia, intrahepatic cholestasis in pregnancy, complicated heart disease, or in cases of a large fetus or malpositioned fetus, a normal delivery may result in an unfavorable outcome for both the fetus and the mother and a cesarean section may be necessary to terminate the pregnancy. At 39 weeks of pregnancy, the mother needs to consult a specialized obstetrician in detail to decide on the mode of delivery. Mothers should avoid excessive mental stress, which may lead to difficult labor.