A second abortion within six months may result in perforation of the uterus, rupture of the uterus, and so on. In such cases, surgical treatment needs to be arranged as a matter of urgency, and the uterus needs to be repaired. In the case of uterine perforation and rupture, there is also the possibility of damage to the surrounding organs, such as the bladder and bowel. Therefore, if a woman does not want to have children, she must use contraception to prevent damage to her body from unwanted pregnancies. There is also the possibility of secondary infertility, habitual abortion, etc.; there is the possibility of menstrual disorders; there is the possibility of heavy bleeding, hemorrhage, and even life-threatening conditions; and there is the risk of needing to have the uterus cleared a second time after the abortion, if necessary, and so on.