What are the symptoms of having worms in stomach See what happens when tapeworms infest your brain - Popular Science Posted: 30 Mar 2019 02:28 AM PDT Tapeworms are revolting no matter where you find them. But when they are in your gut, at least the parasites are in their natural habitat. We are, unfortunately, their primary hosts and, as parasites, their job is to colonize our intestines, shed eggs out our bums, and infect other animals. Normally, they perform this job relatively quietly. They eat your food and hang out inside your guts, but they don't generally want to kill you. That'd reduce their number of potential homes. That's why many people infected with tapeworms stay fairly symptom-free (we regret to inform you that often folks realize they're infected when bits of the worms start coming out in their poop ). In the rare event the intestinal infection does cause symptoms, they usually include loss of appetite, w...