I went today for my regular OB appointment with the assumption that my Group B Strep test was going to be next week (first week of weekly appointments)....well, it was today!
I wasn't mentally prepared for having the test today much less having both areas swabbed
I have a few friends that just had the vag swab.....

Re: Anyone else get 2 swabs for GBS?
I wish I had been! To make matters worse I also have a hemi - I knew I did but doc confirmed.
I'm pretty sure this is what she did to me also!
Me too.
I had mine today and the doc told me that in Canada (where I am) they only do 1 swab, vag, but that in the US they do front and back. I wanted to be like, I know, the ladies on TB told me so :P
And also, I got to do it myself - she stood on the other side of the curtain with her hand reached around, I grabbed the swag, stuck it up there, then stuck it in the tube she was holding. Better way to do it. I think. LOL.
2.0 is on the way! EDD: 2/24/15
I can't for the life of me remember what they did last time. I want to say it was just the vaginal area, but I could be wrong. I still have a couple more weeks before I do it for this pregnancy.
Sorry, I'm no help. I'll just leave the post now
The butt swab is pretty important. During a vaginal delivery, your baby will be coming into contact with germs from both areas. I'm actually surprised that some doctors only do the vag swab.
And I know that sounds icky, but it is part of building the baby's immune system and it is the mom's germs, so it isn't as bad for a just being born baby as a stranger would be. It's how we've evolved over time.
DS-9/2012
DD-7/2015