With the full liberalization of the national two-child policy, more and more mothers have the opportunity to choose to have a second child. However, due to the lax management of cesarean section indications back then, China has been labeled as having the world’s highest cesarean section rate, and most mothers who have given birth to a second child have a cesarean section scar on their tummies. In recent years, with the deepening of people’s understanding of cesarean section surgery, the concept of thinking has also undergone a fundamental change, more and more mothers-to-be began to pursue natural childbirth. So, if you had a cesarean section for your first child, can you still have your second child on your own? The answer is “yes”, but this “yes” is conditional, that is to say, the first child cesarean section, the second child is still conditional on the choice of natural childbirth, but need to pay attention to the “timing, location, people and But it is necessary to pay attention to the “timing, geographical advantage and human harmony”. The so-called “timing”, refers to this pregnancy does not have absolute or relative indications for cesarean section, such as: pelvic abnormalities, placenta praevia, placenta previa, fetal position malposition (breech, transverse, etc.), twin pregnancies (dew-first breech), fetal distress, cephalo-pelvic disproportion (the estimated fetal weight is greater than 3,500 g or heavier than the first fetus weighs more than 500 g); the second is the estimated fetal weight greater than 3500 g or more than 500 g. The second is that the delivery is at least 18 months after the previous cesarean section, when the uterine incision scar is optimally muscularized and the risk of uterine rupture during the trial of labor is small, with an overall risk of less than 0.1%. The so-called “geographical advantage” is that pregnant women are required to choose general hospitals or specialized hospitals for mothers and children with good medical supervision conditions for delivery, and have the conditions for intermediate surgery, blood transfusion and resuscitation at any time during the delivery process, so as to escort the smooth natural delivery; secondly, it is required to require that the thickness of the lower uterine scar should be at least 3 mm or more, but the specific value and the availability of clinical evidence for the thickness of the scar of the lower uterine scar are not available at the moment. However, there is disagreement about the specific value of the thickness of the lower uterine segment scar and whether it is of clinical significance in guiding natural delivery. In general, the thicker the scar, the lower the chance of uterine rupture, but this is not always the case. The so-called “human harmony” refers to the pregnant woman’s ability to undergo obstetric examination on time, accept the obstetrician’s guidance, reasonably control weight gain, timely correction of malposition, and prevent the occurrence of severe anemia and hypertensive disorders of pregnancy, so as to prepare for the natural delivery of the baby; secondly, it means that the pregnant woman and her family members have a strong demand for the natural delivery of the baby and communicate with the obstetrician to understand the significance of the scar. Secondly, it means that the pregnant woman and her family have a strong request for natural delivery, and have fully communicated with the physician to understand the risks associated with natural delivery in scarred uterus, and are willing to accept the possibility of failure of vaginal trial of labor and the possibility of intermediate surgery and sign. To sum up, as long as the pregnant woman who had a cesarean section in her first child can do “one heart, two hands to prepare”, and strict maternity checkups, accept the obstetrician’s systematic guidance, and have the conditions of heaven, earth and man, it is completely possible to have a natural delivery of the second child.