目的　探讨小剂量催产素皮内注射治疗第二产程继发性宫缩乏力的效果及安全性。方法　将第二产程继发性宫缩乏力的产妇 4 0例 ,随机分成两组 ,观察组为小剂量催产素皮内注射组 ,对照组为小剂量催产素静脉滴注组 ,两组各 2 0例进行对照比较。结果　治疗成功率观察组为 80 % ,对照组为 85% ,两组差异无显著性 (P >0 .0 5)。两组新生儿出生后 1分钟Apgar评分及产后出血量差异均无显著性 (P >0 .0 5)。两组皆无 1例发生宫缩过强。结论　用小剂量催产素皮内注射治疗第二产程继发性宫缩乏力的效果及安全性与静脉滴注治疗差异无显著性 ,皮内注射方法简单、方便 ,病人痛苦小。因观察例数少 ,尚须继续研究 Objective To investigate the effect and safety of intradermal injection of oxytocin in the treatment of secondary uterine inertia in the second stage of labor. Methods 40 cases of secondary uterine inertia in the second stage of labor were randomly divided into two groups. The observation group was intradermal injection of oxytocin and the control group was intravenous infusion of oxytocin. The control group was 2 0 cases for comparison. Results The success rate of treatment was 80% in the observation group and 85% in the control group, with no significant difference between the two groups (P> 0.05). Apgar score and postpartum hemorrhage volume at 1 minute after birth were not significantly different between the two groups (P> 0.05). None of the two groups developed uterine contractions. Conclusions The efficacy and safety of intradermic injection of oxytocin in small-dose oxytocin for the treatment of secondary uterine inertia in the second stage of labor are not significantly different from those of intravenous drip therapy. The intradermal injection method is simple and convenient, and the patient has little pain. Due to the small number of observations, we must continue to study