rubbing backside

Question
About 4 months ago my basset started rubbing her backside on the carpet, in circles.  Similar to the stanley steemer commercial about Toby.  It doesn't seem like she is having any trouble going to the bathroom.  Obviously, I'd rather her not do this. We only have carpet in the family room and she only does it there.  It is new and rather scratchy. Any suggestions?

Answer
The vet needs to check her for worms and/or an anal gland impaction.  Dogs tend to scoot to relieve an itch...if it's very occasionally it's not a big deal, however if she is doing it on a regular basis, chances are something is going on back there.  The most common causes being an anal gland impaction or worms.

If it is an anal gland impaction, left untreated it will turn into an infection for which meds will be needed.