Intestinal worms are organisms that feed off the human body. Tapeworm, hookworm, pinworm, and other types of worms affect the body in different ways. A person may notice worms in stool. Types of ...

Intestinal worms may clear up on their own, ... Worms in human poop can take several appearances. For roundworms, you may find pieces of worms or large, live worms in your feces.

The World Health Organization estimates that almost one-quarter of the world’s population – or 1.5 billion people – are infected by parasitic worms living in their intestinal systems.