The liver fluke is a type of parasitic flatworm that primarily affects the livers of various animals, including cattle, sheep, and humans. These tiny creatures can cause serious health issues, such as liver damage and digestive problems. They thrive in wet environments, often found in freshwater bodies where they can infect their hosts through contaminated food or water. Infection with liver flukes can lead to a disease known as fascioliasis. Symptoms may include abdominal pain, fever, and jaundice. Preventing liver fluke infections involves proper sanitation and controlling the habitats where these parasites live, ensuring both livestock and humans remain healthy.