Fellas fellas. Lets clear our heads and get some facts straight. Toilets, sanitation in general, is an important component to a healthy society. It provides protection from disease and infections. List of waterborne disease a toilet helps prevent: hepatitis, amoebiasis, and gastrointestinal infections. Toilets also offer prevention of environmental contamination. Also the spread of mosquitos that can transmit diseases like dengue, yellow fever, and zika.