It will be the group B strep swab. It is external, my ob gave me the stick thing at my appointment and sent me off to do it myself in the bathroom. Its like a big ear bud thing that you swipe from vagina to anus basically (nice). It was then sent of to pathology. With Izzy the Dr did it for me. I would think that because you are having a c/s you wouldn't need to have the test because basically if you test positive they give you ab's during labour as there is a risk of bub contracting it during birth - not an issue in c/s. Many hospitals don't even test for it anymore because you can test + one day and not the next. I would question why you need the test when you are having a c/s???? I tested + for Izzy and - for James but they still wanted me to have ab's which I refused and they noted it in my chart. You don't have to have the test if you don't want it.