A third cesarean section is usually required earlier if the situation is more unusual such as when a pregnant woman has a placenta implantation or uterine rupture. However, if there are no special circumstances, an early cesarean is usually not needed. If the patient has had two cesarean sections, poor wound healing may lead to conditions such as spontaneous rupture of the scar on the uterus later in the pregnancy. Abnormalities such as placenta implantation may also occur due to varying degrees of implantation of the placenta in the uterine scar, and the above conditions usually require an early cesarean section. If there are no special circumstances for the pregnant woman and the fetus, the cesarean section is usually performed only after the fetus has matured, usually at 38 to 42 weeks of gestation at full term, and the best time for a cesarean section is 39 weeks. Therefore, if the patient is the third cesarean section, it is recommended to do a good job of obstetric examination during pregnancy, improve the relevant examinations under the guidance of the doctor, to clarify the need for early cesarean section.