After the abdomen is openned, the obstetrics carve her placenta in order to take the baby out.Why would you ask that? Mind your own business, that's personal stuff.
This forum impresses me more and more every day.
AH, I forget one important thing. Another reason is to search for sterile dressings / suture needles, etc.
If leave them there will cause big problems.
What kind of a question is that mate? You don't ask things like that. Disgusting.congrats! Your wife cesarean or vaginal birth?