My 8 week old puppy did the same thing. She had many tests by our regular vet, including a barium x-ray, but nothing showed a cause. Was referred to veterinarian specialists. She saw a neurologist, and internal medicine specialist. Finally a surgeon did an exploratory exam under anesthesia. They found she had an anal structure.(fibrous band). They gave us the option to do a balloon dialation to enlarge the anal opening. We elected to try it. It worked. They said she might have to have it done again as she grew larger, but that is not the case. She is 5 years old now and doing great. She does have to take a liquid (lactulose) medicine daily for life. She has taking it since 8 weeks of age. She is so cute. I say Dolly time for your medicine. She comes to me and opens her mouth for the syringe. Her stools are firm and normal with no more yelping. She eats Horizon Amicus small breed grain free dry food with raw freeze dried mixers mixed in. She is a great little girl. I call her my million dollar baby.
