As the title says, I found blood in my dogs poop this morning. I scheduled a vet appointment, but I'd also like to hear what people think it could be. My dog is male, 5 years old, and an eskimo/sheltie mix. The blood was bright and seemed fresh, but he's eating, drinking, and overall behaving normally. The poop was really runny, but only the last time when their was blood in it. As far as I know he doesn't have ticks, fleas, and didn't eat anything weird. Any ideas as to what this could be?