A c-section, or cesarean section, is the delivery of a baby through a surgical incision in the mother's abdomen and uterus. In some circumstances, a c-section is scheduled in advance. In others, the surgery is needed due to an unforeseen complication. If you or your baby is in imminent danger, you'll have an emergency c-section. Otherwise, it's called an unplanned section.
According to the U.S. Centers for Disease Control, about 32 percent of American women who gave birth in 2015 had a cesarean delivery.