What are the risks of a vaginal delivery after c-section?

Uterine rupture. Any incisions on the uterus from previous myomectomies or a c-sections puts you at risk for a uterine rupture when your contractions start during labor of your next pregnancy. If the old scar opens up, massive bleeding can occur and lead to catastrophic consequences for you and your baby. For this reason, a c-section may be a better option. Discuss this with your doctor.