My pom is getting older. Wic is 12 years old now. He has been a great dog. Rescently, he has been having issues with finishing his bowel movements. We’ll hear him cry out while in the middle of completing his bowel movement.It seems that he doesn’t complete the process before he wants to come back in. This results in having to clean the back side of our pom constantly. We thought that it was the hair getting in the way but it is not that. What can I do to help this dog?