Thanks for the input. I really appreciate it. Hopefully, it isn't anything and in time the fur will grow back and she won't be bothered by it. Come to think of it, since her surgery she has been showing off her shaved belly which she was never in the habit of doing before. She isn't a belly rubber, but she has spent more time lying on her back with feet up and belly exposed, so she must realize that this too is different and showing it off as she is her paw.