a dog pooping blood is enough to send most dog moms and dads into a panic. In my eight years as a veterinarian, bloody diarrhea in dogs is one of the top reasons parents bring their pets to see me.

While we were away, she developed severe diarrhea with some blood. She also was vomiting some. The only thing that was different is that we gave her a friend’s dog’s food one day. We called ...