[Effect of short-acting combined oral contraceptives on bleeding after induced abortion].

Objective: To explore the effect of short-acting combined oral contraceptives on vaginal bleeding after induced abortion. Methods: A total of 726 patients, who had took induced abortion from July 2016 to September 2016 in obstetrics and gynecology outpatient department of Nanfang Hospital, Southern Medical University, were included and divided into the observation group and the control group according to whether they took short-acting combined oral contraceptives after induced abortion, with 312 cases, 414 cases respectively.The vaginal bleeding days, amounts of bleeding, the endometrial thickness 3 weeks later, and whether the patient had menstrual recovery on time were observed and analyzed. Results: The observation group had less bleeding days and amount of bleeding, compared with the control group.69.87% (218/312) patients of the observation group had more than 8mm of endometrial thickness on postoperative day 21, while 61.11% (253/414) of the observation group did, the difference was statistically significant (P=0.034).90.06% (281/312) patients of the observation group had menstrual recovery on time, while 82.61% (342/414) of the observation group did, the difference was statistically significant (P=0.004). Conclusion: Short-acting combined oral contraceptives after induced abortion can significantly shorten the vaginal bleeding days, reduce the amount of bleeding, promote endometrial repair and menstrual recovery.There fore, it has important clinical significance and application value.目的： 探讨短效复方口服避孕药对人工流产后阴道出血情况的影响。 方法： 选取2016年7至9月在南方医科大学南方医院妇产科门诊接受人工流产术的726例患者作为研究对象，根据术后是否服用短效复方避孕药分为观察组(312例)与对照组(414例)，观察两组患者术后阴道出血天数及出血量、术后3周子宫内膜厚度及月经恢复情况。 结果： 观察组患者人工流产后出血天数、出血量低于对照组；术后21 d观察组69.87%(218/312)子宫内膜厚度可达到8 mm以上，对照组61.11%(253/414)达到8 mm以上，差异有统计学意义(P＝0.034)；观察组患者90.06%(281/312)、对照组82.61%(342/414)月经按期复潮，差异有统计学意义(P＝0.004)。 结论： 人工流产后应用短效复方口服避孕药可缩短阴道出血天数及减少出血量、促进子宫内膜修复及月经复潮，具有重要临床意义及应用价值。.