Poor sanitation such as inadequate waste management, unhealthy latrines and poor SPAL are risk factors for diarrhea in toddlers. Data from the Sematang Borang Health Center showed 90 cases of diarrhea in toddlers in the period January–September 2024. This study aims to analyze the relationship between Environmental Sanitation and Personal Hygiene with the incidence of diarrhea in toddlers in …