Women can have up to three cesarean sections. Nowadays, cesarean sections are mostly performed at the lower part of the uterus, because of the thin muscle layer of the lower part of the uterus and the passive expansion and stretching of the lower part of the uterus after pregnancy, which is an injury to the lower part of the uterus after each operation and can lead to poor local blood circulation. If it is a multiple cesarean section again, it is easy to have the risk of a precursory uterine rupture or uterine rupture during pregnancy, affecting the life of the pregnant woman and the fetus. Before a woman chooses to have a second cesarean section, she should pay attention to proper rest, not to walk excessively, and to strengthen her maternity checkups and have regular ultrasounds to check the thickness of the lower uterine muscle layer to prevent uterine rupture. It is also necessary to choose a cesarean section as soon as possible after the fetus is mature according to the growth and development of the fetus to avoid uterine rupture.