Medical groups generally urge a C-section when it is medically necessary because of the mother’s health problems, threats to the baby’s health, a multiple birth or the large size or abnormal position of the baby. A C-section delivery is generally safe for both mother and baby. But it does come with some risk because it involves incisions in the woman’s abdomen and uterus. Babies born by C-section sometimes have breathing problems for a few days after birth. Women who have a C-section have an increased risk for complications in future pregnancies, including problems related to the placenta and heavy bleeding. Having a C-section, however, does not rule out having a vaginal birth in the future.