Risk is almost zero. Risk of needing a transfusion or a hysterectomy
is not zero, but depends on your specific history. If you do not have a previa, there is a 1-in-a-1000 chance of having an accreta, an abnormal attachment of the placenta
to the uterus
, which can lead to extra bleeding or removal of uterus. That risk is one in 30, 000 with a first c/s.