近年来,产后出血的发生率虽有明显降低,但仍为产科常见的严重的并发症。软产道损伤引起的产后出血,临床上往往不易及时发现,延长阴道出血时间。我院5年内发生软产道损伤致产后出血18例,现简要分析如下。临床资料一、发生率:1982年1月至1986年12月,我院经阴道分娩产妇共7008例,发生产后出血80例,占1.1%。其中软产道损伤18例,占产后出血的22%。二、一般情况:产妇年龄为20～30岁,均为第一胎足月产,既往无出血性疾病及高血压病史。总产程最短为4小时,最长为18小时,第二产程均在30～60 In recent years, although the incidence of postpartum hemorrhage was significantly reduced, but it is still a common gynecological complications. Soft birth canal injury caused by postpartum hemorrhage, clinically difficult to find in time, to extend the vaginal bleeding time. In our hospital within 5 years of soft birth canal injury caused by postpartum hemorrhage in 18 cases, are briefly analyzed as follows. Clinical data First, the incidence: January 1982 to December 1986, our hospital vaginal delivery of a total of 7008 mothers, 80 cases occurred postpartum hemorrhage, accounting for 1.1%. Including 18 cases of soft birth canal injury, accounting for 22% of postpartum hemorrhage. Second, the general situation: maternal age is 20 to 30 years old, are the first full-term fetal birth, no past history of hemorrhagic disease and hypertension. The shortest total length of labor is 4 hours, the longest is 18 hours, the second stage of labor is 30 ~ 60