What do worms look like in dog poop? Evidence of worms can show up in dog stool and vomit in a couple of ways: Depending on the type of worm, you might see small fragments of worms that resemble ...

Intestinal parasites, commonly known as worms, are microscopic organisms that live inside your dog and silently cause harm. The most common types include roundworms, tapeworms, and hookworms.