Cause of diarrhea in dog?
*Not my dog, a family member's.
Border Collie, neutered male, about 4 years old. He's having repeat bouts of violent, bloody diarrhea. In the house, out of the house, on himself, on the walls, on the other dog. . . It will seemingly resolve for a few days and then starts up again. Dog is otherwise OK, eating the bland diet he's been prescribed with gusto, active. He gets pretty distressed when he has accidents, of course.
Vet cannot find a cause. Bloodwork is normal, no parasites. IMO it's time for a look-see inside the dog.
Can dogs get ulcerative colitis or something similar? I know UC in humans is usually autoimmune. Just wondering out loud.
All suggestions welcomed!