Q: I was at a local pet store looking at the hamsters and I noticed that a few of them had matted diharria (spelling?) in their fur by their butt. A couple of them looked like they had wet tail. Other than the diharria though they didn't look or act unhealthy. They weren't lethargic or making any noises that would alert me to pain. I went in the late evening so they would be awake...what do you think...wet tail?