Abstract: Objective: To investigate the etiology, clinical characteristics and outcome of complete uterine rupture. Methods: A retrospective analysis was performed on the case data of 9 patients with complete uterine rupture admitted to the Affiliated Huai′an No.1 People′s Hospital of Nanjing Medical University from 2016 to 2018, and the general information and treatment process of the patients were summarized. Results: Nine patients with complete uterine rupture: Induced labor caused 4 cases of uterine rupture(2 cases were in the uterine body and 2 cases were in the original incision scar of the lower uterine segment), and placental implantation caused 1 case of uterine rupture (in the lower portion of the original incision scar). 1 case of unexplained uterine rupture(with a history of induced abortion, located at the bottom of the uterus) and one case of scar rupture after laparoscopic corner surgery (located at the uterine corner). Two cases of previous cesarean section scar incision rupture after uterine contraction (the original incision scar in the lower uterus). Two cases had persistent lower abdominal pain, 4 cases had irregular lower abdominal pain, 1 case had persistent umbilical pain, and 2 cases didn't have obvious abdominal pain. There were 6 cases with vaginal bleeding, and 3 cases without. Seven patients underwent uterine rupture repair and two underwent total hysterectomy. Of the 5 non-labored cases, 1 case of intrauterine fetal death, and the remaining 4 cases had good neonatal outcomes. Conclusions: Scarred uterus re-pregnancy is a high incidence of uterine rupture. Pregnant women with a history of uterine cavity operations such as placenta previa, multiple cesarean sections and abortions, and uterine surgery should be alert to the risk of uterine rupture.

Key words: Uterine rupture, Cicatrix, Uterus, Pregnancy