Mi Y, Qu P, Guo N, et al. - Although vaginal birth after cesarean section (VBAC) is a reasonable and safe option for most women who have had a previous cesarean section, it is linked with an increased risk of adverse outcomes such as uterine rupture. In order to lower the risk, the factors were sought that may influence VBAC and a model was established that may aid in predicting the success rate of trial of the labor after cesarean section (TOLAC). They assessed a total of 778 pregnant women who gave birth at Northwest Women’s and Children’s Hospital from January 2016 to December 2018, had a history of cesarean section and voluntarily chose the TOLAC. Findings support the utility of TOLAC in reducing the cesarean section rate. The following were identified as protective indicators: being primiparous, not overweight or obese, having a cervical score ≥ 5, a history of previous vaginal delivery or neonatal birthweight < 3,300 g. The validated model constructed in this study had an approving predictive ability.