对湖南省４～１６岁儿童功能性遗尿进行流行病学调查。结果显示：总患病率为２．３１％；男性（２．８１％）高于女性（１．７５％）；农村（３．１３％）高于城市（１．８５％）；以６岁年龄组最高（４．７５％）。其中３７．５％的遗尿症病人合并其它精神卫生问题。本文对与遗尿症发生有关的因素进行了探讨。 Epidemiological survey of functional enuresis in children aged 4 ~ 16 years in Hunan Province. The overall prevalence rate was 2.31%; men (2.81%) were higher than women (1.75%); rural areas (3.13%) were higher than cities (1.85%); The highest age group (4.75%). 37.5% of enuresis patients combined with other mental health problems. This article discusses the factors associated with the occurrence of enuresis.