Common Medical Reasons for Cesaerean
The baby is in an abnormal birth position.
If the baby fails to turn head-down during late pregnancy, it might present a problem for natural birth. However, sometimes, the baby may spontaneously turn breech (where the baby sits head-up with buttocks or feet pointing towards your birth canal). For breech births, a cesaerean is usually performed, but not always. But if the baby assumes a sideways or horizontal position (transverse lie), a C-section is definitely required.
The chances of a baby turning breech increases when you are carrying twins or more babies. The probability that at least one of the baby is in an abnormal position is much higher than if you are pregnant with a single child.
Placental or umbilical cord complications.
In the case of placenta previa - where the placenta is attached low in the uterus - the vagina route is too dangerous for the baby. This is because during labour, the placenta would be delivered first before the baby, and this will cut off the baby's oxygen supply. Another placental complication which necessitates an emergency c-section is when the placenta detaches from the womb before labour begins.
If the umbilical cord partially slips out through the cervix before your baby is born, (a situation called umbilical cord prolapse), this can also cut off the baby's oxygen supply and require immediate cesaerean.
