Oh, I know it happens that some dogs do it for no disease-related reason but it is almost always an indicator of problems and in all the dogs I've been around over the years, including many rescues, none of them proved to be problem free when they did it repeatedly. Any dog will do it if they are just itching in the area or feel something there they want to try to remove but butt-scooting that happens more than just very occasionally is almost always a symptom of some type of problem/pathology. I would vet her and hope she is like yours - just doing it to try to clean off or has an itch.
In this dog's case, though, leaving a trail of brown sounds like she is not getting her bowel completely emptied with just normal straining-at-stool and I believe I would want to know why.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |