我院１５３８例正常阴道分娩产妇共发生产后尿潴留６５例，发生率为４．２４％。１５３８例正常阴道分娩产妇中，初产妇为１２０１例，产后尿潴留发生率为５％，经产妇为３３７例，其发生率为１．４８％，经统计学处理，两者有显著性差异。作者采用产程计值分析的方法对产后尿潴留的病因作了探讨。在初产妇中，产后尿潴留组与对照组的第一产程及第二产程均有显著性差异，提示产后尿潴留的发生可能和产程时间长有关。 In our hospital, 1538 cases of normal vaginal delivery of maternal postpartum urinary retention occurred in 65 cases, the incidence was 4.24%. In 1538 cases of normal vaginal delivery, 1201 cases of primipara, postpartum urinary retention was 5%, 337 cases of mothers, the incidence was 1.48%, after statistical analysis, the two were significantly different. The author uses the method of labor value analysis for the cause of postpartum urinary retention was discussed. In primipara, postpartum urinary retention group and control group of the first stage of labor and the second stage of labor were significantly different, suggesting that the occurrence of postpartum urinary retention and labor may be related to a long time.