Schistosoma is a genus of parasitic worms that cause a disease known as schistosomiasis. These worms live in freshwater and can enter the human body through the skin when people come into contact with contaminated water. Once inside, they can grow and reproduce, leading to various health issues, including abdominal pain, diarrhea, and even severe organ damage. The life cycle of Schistosoma involves both human hosts and freshwater snails. The snails release larvae into the water, which can infect humans. Preventing schistosomiasis involves improving sanitation, providing clean water, and educating communities about avoiding contact with contaminated water sources.