目的 :了解河南省儿童和青少年单一症状原发性夜遗尿 (PMNE)的发生情况。方法 :随机选择郑州和安阳 16所学校的 85 0 0名 6～ 18岁无白天排尿异常的正常小学和中学生及其家长进行问卷调查。调查内容包括过去1个月内是否夜间睡眠时尿床 1次或以上 ;白天有无排尿异常。结果 :实际回收问卷 80 0 6份 ,有效问卷 7896份 ,其中男 3979份 ,女 3917份。各年龄段PMNE发生率随着年龄的增长而降低 ,男性由 6岁 10 .2 %下降为 18岁的 1.4 % ;女性由 6岁的 9.7%逐渐下降为 18岁的 0 .9%。遗尿发生率男性 16岁和女童 14岁以后降为 1%左右。结论 :学龄儿童遗尿的发生率仍很高 ,青春期后稳定在 1%左右 Objective: To investigate the incidence of single nocturnal enuresis (PMNE) in children and adolescents in Henan Province. Methods: A total of 8500 normal primary and secondary school students aged 6-18 years with no dysuria and their parents were randomly selected from 16 schools in Zhengzhou and Anyang to conduct questionnaire survey. The survey included bed wetting during bedtime during the past month at least one time or more; during the day with or without abnormal urination. Results: There were 80 0 actual questionnaires and 7896 valid questionnaires, of which 3979 were male and 3917 were female. The prevalence of PMNE decreased with age in all age groups, with men falling from 10.2% at 6 years to 1.4% at 18 years and women’s gradually decreasing from 9.7% at 6 years to 0.9% at 18 years. The prevalence of enuresis was 16% for males and about 1% for girls after 14 years of age. Conclusion: The incidence of enuresis in school-age children is still very high, stable at about 1% after puberty