Human Worms in the Stool

Humans can contract parasitic intestinal worms just as pets can, especially when they travel to or live in unsanitary places. Stool examinations can confirm the presence of these parasites, according to the University of Maryland Medical Center.

Varieties

• Stool examination can detect worms commonly found in humans. These worms belong to a group known as helminths and include roundworms, tapeworms and pinworms. They can live inside the digestive system for years, causing fatigue, digestive problems and discomfort.

Causes

• Travelers to foreign countries put themselves at greater risk of contracting worms, especially in places with inadequate sanitation where they may ingest contaminated water or foods. Very young or old people and those with impaired immune systems also face greater risk of infection.

Diagnosis

• A stool examination can detect the presence of intestinal worms while also checking for one-celled parasites called protozoa. Microscopic examination of samples from the anus can reveal telltale eggs indicating a pinworm infection.

Treatment

• Physicians can prescribe drugs that target a particular type of intestinal worm. The treatment many require multiple doses over a period of weeks to eliminate the parasite. A second stool examination then confirms the success of the treatment.