Cesarean section, also known as C-section or cesarean delivery, is the use of surgery to deliver one or more babies when a vaginal delivery would put the baby or mother at risk. This may include obstructed labor, twin pregnancy, high blood pressure in the mother, breech birth, problems with the placenta, umbilical cord, shape of the pelvis, and a previous C-section.The World Health Organization (WHO) recommends a C-section based on medical need and in many cases, lifesaving for mother and baby.