Cesarian section, vaginal birth after: It was once the rule that, after a C-section, the next delivery also had to be by C-section. Now, vaginal delivery after Cesarian section (VBAC) is sometimes feasible. Age is one the factors that need to be considered, since women over 30 who try a vaginal delivery after a C-section are about three times more likely to have a uterine rupture than younger women.