Can a woman who had a C-section for her first child have a vaginal delivery for her second? Online discussions often claim "once a C-section, always a C-section"—that once you choose a cesarean, all subsequent deliveries must be cesarean. Is this really true?
Currently, many obstetricians and experts hold differing views on whether a vaginal delivery is possible after a first-birth C-section.
Some doctors maintain that a vaginal birth is not possible after a cesarean section. This is because the uterus is incised during a cesarean, forming a scarred uterus that heals. The uterus's capacity for stretching is significantly reduced, making vaginal birth risky. It could lead to uterine rupture during delivery, causing severe bleeding in the mother.This primarily depends on the mother's physical condition. As long as there is an interval of at least three years between the first and second pregnancies, the scar from the first cesarean section has fully healed, and there are no indications for a cesarean in the second pregnancy (such as a small pelvis, narrow birth canal, or abnormal fetal position), a vaginal delivery is possible.
Some doctors also note that the incidence of uterine rupture during a vaginal birth after cesarean is related to the thickness of the sutures used to close the cesarean scar from the first birth. After a cesarean section, doctors typically perform a double-layer suture on the uterine incision. While the thicker sutured scar is also stretched thin by the fetus during the second delivery, the risk of uterine rupture is significantly lower compared to a thinner suture.
Therefore, while vaginal delivery remains possible after a cesarean section, it carries considerable risks. Crucially, drug-induced labor should never be used during a vaginal delivery attempt after a C-section, as it significantly increases the risk of uterine rupture.
We remind expectant mothers to carefully consider their delivery method during their first pregnancy. Today, many women opt for cesarean sections primarily to avoid the pain of natural childbirth. Cesarean delivery should not be chosen solely to avoid pain or for scheduling convenience.
It should only be considered when there are complications for the mother or baby, such as a narrow pelvis, breech presentation, meconium-stained amniotic fluid, umbilical cord entanglement, or a large fetus. Natural birth is not only beneficial for the baby but also causes minimal harm to the mother, allows for faster postpartum recovery, and is generally the preferred option under normal circumstances.