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本文采用碱性正铁血红素比色法定量测定40例妇女口服米非司酮配伍米索前列醇抗早孕后的子宫出血量，并对胚囊排出后一周时的子宫内膜组织学进行了观察分析。结果表明，药物流产后一周内阴道流血量平均为132．15±100．73ml，在胚囊脱落当日出血量较多。妊娠终止一周时宫腔组织物中65．0％含蜕膜组织，仅已5.0％含游离个别绒毛。子宫内膜呈增生与分泌共存现象或分泌现象分别占35．0％、20．0％。由此可见，蜕膜组织排出缓慢和子宫内膜的修复障碍可能是米非司酮终止早孕后阴道出血量多，流血时间长的主要原因。
In this paper, 40 cases of women with oral administration of mifepristone and misoprostol were used to quantitatively determine the amount of uterine bleeding after early pregnancy, and the endometrial histology was performed one week after the embryo sac was excreted Observation and analysis. The results showed that one week after medical abortion vaginal bleeding averaged 132.15 ± 100.73ml, the amount of bleeding on the day of embryo sac shedding more. One week after the termination of pregnancy, 65.0% of the uterine tissue contains decidual tissue and only 5.0% contains free individual villus. Endometrial hyperplasia and secretion of coexisting phenomenon or secretion accounted for 35.0%, 20.0%. Thus, the decidua tissue excretion slow and endometrial repair obstacles may be the main reason for mifepristone termination of early pregnancy after more vaginal bleeding, bleeding a long time.