Liver fluke infection is caused by parasitic worms known as liver flukes, which belong to the genus Fasciola. These parasites typically infect the liver of various animals, including cattle and sheep, and can also affect humans. Infection occurs when a person consumes contaminated water or food, particularly raw or undercooked aquatic plants. Symptoms of liver fluke infection may include abdominal pain, fever, and jaundice. If left untreated, it can lead to serious complications, such as liver damage or bile duct obstruction. Diagnosis is usually made through blood tests or imaging studies, and treatment often involves antiparasitic medications.