Abstract: Objective: To investigate the hemostasis efficacy of intrauterine compression in the first trimester cesarean scar pregnancy. Methods：Thirty one patients with cesarean scar pregnancy underwent the uterine compression hemostasis and hospitalized at Fujian Maternal and Child Health Hospital from January 2010 to December 2014 were retrospectively analyzed. Results：There were 18 patients used uterine balloon compression hemostasis, and 13 patients used uterine yarn plug compression hemostasis. The average injection volume of balloon was （２6.88±17.7２） mL （７～６０ ｍＬ）． The average placed time of balloon was （３４.94±2０．６２） ｈ （１５～９１ ｈ）． The average amount of bleeding during uterine balloon compression was 37.00 （10.00, 81.2５） mL （2~360 mL）. The average placed time of uterine plug yarn was (39.15±14.68) h (18~72) h. The average amount of bleeding after the yarn plug compression hemostasis was 10.00（7.25，18.75） mL （5～55 mL）. The success rate of balloon compression hemostasis was 94.4% （17/18）, the rate of infection was 11.11%（2/18）. The success rate of uterine yarn plug hemostasis was 92.３％ （１2/13）, the rate of infection was 7.69%（1/13）. Conclusions：Both of the uterine balloon and the yarn plug compression hemostasis are effective and safe for CSP treatment and worth to be recommended to clinical treatment.

Key words: Cicatrix, Pregnancy, Hemostasis, Uterine balloon, Uterine plug yarn