Are worms visible in my dog’s stool and, if so, what do they look like? - Advanced Animal Care
So, yes and no. Some worms are going to be pretty easily visible. They will look like long pieces, and we always use terms in food, so they'll look like spaghetti. And so that's going to be pretty easily visible. Others will sometimes be in their stool or hang around their back end and their fur, and will look like tiny grains of rice. Those are going to be kind of the more common ones that you'll see in their stool if you'll see anything.