This relationship was studied at Hochiminh city in 2003 using Apley definition and Rome II criteria. Objectives: To determine the relationship between stressful life events in family, at school and functional chronic abdominal pain among junior high school children at Hochiminh city. Methods: A cross-sectional study was conducted among 8 junior high schools at district 1 in Hochiminh city, with 1957 subjects from 50 classes randomly selected with one-stage cluster sampling.