For the purpose of surveying the relationship of family health behaviors with enuresis, among the school-age children (aged 7-12 year), who studied at primary schools of educational regions, in the West of Tehran, 138 students who at least, were enuresis, according to DSM III-R diagnostic criteria, chosen as case group, and 127 students who were normal, chosen as control group. The research was a analytical-descriptive survey that has been carried out in the form of a case-control retrospective study. A multistage random sampling method was used to select the studied sample. The case and control were matched with each others, according to their age, sex, educational region and socioeconomic status. Finally, data analysis revealed that among factors that related to the childs prenatal and neonatal period, there was significant association between, mother taking effort for aboration, history of mothers stress, and abdominal trauma during pregnancy, kind of delivery, child cyanosis at birth and enuresis. Also results indicated significant relationship between duration of childs breast feeding history of childs fever with convulsion and enuresis. At least based on the results, most hypothesis have not been rejected and according to them practical recommendation have been suggested.