Fasciolopsis buski is a parasitic flatworm that causes fasciolopsiasis, a disease that affects the small intestines of humans and pigs. Synonyms for this disease-causing organism include giant intestinal fluke, Buski's liver fluke, and Fasciola buski. It is also commonly referred to as the intestinal fluke. The life cycle of Fasciolopsis buski involves snails as intermediate hosts and freshwater plants as the source of infection for humans and pigs. Symptoms of fasciolopsiasis include abdominal pain, diarrhea, and malnutrition. Proper hygiene practices and avoidance of contaminated food and water sources can help prevent infection with this parasitic flatworm.