After the opening of the second child policy, many women have the idea of having a second child, but there are many mothers will be worried about the occurrence of uterine rupture in the process of giving birth to a second child, uterine rupture is a serious complication of obstetrics, in general, if the first child is a normal birth, the chances of uterine rupture in the second child is smaller, but if the first child is a cesarean section, the chances of occurrence are greatly increased, how to prevent uterine rupture in the second child? Uterine rupture is the rupture of the isthmus or the lower part of the uterus that occurs during labor or in late pregnancy. The most common causes of uterine rupture in second pregnancy include scarring or lesions of the uterus, multiple abortions, and obstruction of the fetal first dew during delivery. Uterine rupture is one of the serious complications affecting the life and safety of mother and child in late pregnancy. It is very important to prevent uterine rupture during labor and delivery. Nowadays, there are many pregnant women, especially those with low knowledge level, who do not go for checkups, do not understand the physical condition and insist on normal delivery at the insistence of their family members, which are the reasons for uterine rupture to occur. For patients whose previous pregnancy was terminated by cesarean section or who have a recent history of myomectomy, choriocarcinoma or invasive staphyloma with uterine damage, it is more important to perform systematic pre-pregnancy evaluation before pregnancy, in addition, it is also important to pay attention to weight control, more exercise and regular maternity check-ups during pregnancy to avoid uterine rupture due to huge; for previous For women who have terminated their pregnancy by cesarean section, the interval between pregnancies should be at least 18 months to reduce the risk of uterine rupture. During pregnancy with scarred uterus, it is important to be constantly vigilant and to seek hospital consultation in time if abnormal uterine pain and other special conditions occur.