The chances of rupture of the scar of the second child can not be judged directly, there are high and low, each person’s situation is different, the previous scar formation causes different chances of rupture are not the same, and there is no accurate value. There is no exact value. The probability of rupture of the scar in the second pregnancy is relatively low when the first pregnancy is performed by lower uterine segment cesarean section. If the cause of the previous scar formation is the removal of fibroid from the uterine body, the fibroid penetrates through the whole myometrium or the uterine horn resection repair, the probability of rupture in the second pregnancy is higher than that of rupture of the scar after the lower segment cesarean section, the thickness of the myometrium at the scar needs to be monitored closely during the pregnancy. Before getting pregnant, you must understand your personal physical condition and clarify the cause and location of scar formation, as well as prepare for the pregnancy. If you had a previous cesarean section, it is recommended that you prepare for pregnancy after a 2-year interval. Scarred uterus second pregnancy is recommended to regular obstetric examination, if there is any discomfort in time to consult the doctor.