Discuss the matter with your doctor if you've had a C-section and would like to attempt a vaginal delivery this time. There is some risk that the surgical scar from an earlier C-section could stretch and pull apart during subsequent labor and delivery, with serious consequences. In this case, a repeat C-section may be advised to avoid rupture of the uterus. A Cesarean delivery may be necessary if your baby is too big to fit through the birth canal. CPD may be suspected during pregnancy but usually labor must begin before it can be confirmed.
Fetal distress is another reason for a Cesarean section.
Doctors use fetal monitors during labor to watch the fetal heartbeat and its response to labor. If the umbilical cord is compressed, a C-section may be necessary. The cord may come into the vagina ahead of the baby's head or the baby can press on part of the cord. This is a dangerous situation because a compressed umbilical cord can cut off the blood supply to the baby. A C-section is necessary if the baby is in a breech presentation, which means the baby's feet or buttocks enter the birth canal first.