The tapeworm might be visible in your poop. If you have pinworms, you might have itching around your anus, especially at night. That's when pinworms lay eggs. What do pinworms look like in stool?

The tumor-like parasites can also spread to the lungs, brain, heart, bone, and other organs. In humans, the infection is insidious, with an asymptomatic incubation period of between 5 and 15 years.

Tapeworms or pinworms can look like white specks, and medications are available to treat both infections. What causes white specks in stool? Share on Pinterest Westend61/Getty Images ...

Ancient tapeworm eggs found in 270-million-year-old shark poop suggest these parasites may have plagued animals for much longer than previously known, researchers say. Tapeworms cling to the inner ...

Ancient tapeworm eggs found in 270-million-year-old shark poop suggests these parasites may have plagued animals for much longer than previously known, researchers say. Tapeworms cling to the ...

Ancient tapeworm eggs found in 270-million-year-old shark poop suggests these parasites may have plagued animals for much longer than previously known, researchers say.