They poop out the sand. THEY POOP OUT THE SAND ... But now I think about it, I’m not worried about worms, who process soil by grabbing food with their throat, coating it with their saliva ...

If your dog has worms, you may find small grain-like worms in their poop. Tiny worm eggs may also be present in your dog's poop, but these are usually harder to spot. You may also notice ...