5. Cesarean Section
Commonly known as a C-section, this is a surgical procedure in which the baby is removed through an incision made in the mother's abdomen and uterine walls. Complications during pregnancy (placental problems, multiples, etc.) or labor (cord prolapse, fetal distress, etc.) can make a Cesarean section more likely. According to the Centers for Disease Control, C-sections account for 31.9% of all deliveries in the United States.