Objective: The existence of basic sanitation facilities is still one of the causes of diarrhea disease in East Nusa Tenggara, this study aimed to analyze basic house sanitation facilities and the habit of washing hands with soap on the incidence of diarrhea in children under five.
Methods: The research this observational analytic study used a cross sectional design. Samples are 100 houses of children under five in Oelnasi Village.