The Impact of Health Counseling on Parental Behavior in Preventing Diarrhea in Toddlers in Keluas Hulu Village, 2024**

Background: Several diseases closely related to environmental sanitation remain persistent health issues in society, one of which is diarrhea. This is evidenced by the high number of diarrhea cases, particularly among toddlers, visiting healthcare facilities. Objective: This study aims to determine the impact of health education on parental behavior in preventing diarrhea in toddlers in Keluas Hulu Village, the working area of Ulak Muid Community Health Center, Melawi Regency, in 2024. Research Method: This research uses a quantitative method with a pre-experimental design and employs a One Group Pretest-Posttest Design. The population consisted of 101 individuals, with a sample size of 43 mothers of toddlers. Research Results: The results indicate that the average (mean) knowledge score before the health education was 7.1, which increased to 8.5 after the education (P-value = 0.000). The average (mean) attitude score before the health education was 31.1, increasing to 31.9 after (P-value = 0.002). The average (mean) practice score before the health education was 5.2, which increased to 5.6 after (P-value = 0.043). Conclusion: Health education significantly impacts parental behavior in preventing diarrhea in toddlers in Keluas Hulu Village, the working area of Ulak Muid Community Health Center, Melawi Regency, in 2024.