目的：探讨彩色多普勒超声诊断剖宫产后疤痕妊娠的临床价值，及其对治疗方案选择的指导意义。方法：回顾性分析2014年1月—2016年11月40例超声检查考虑疤痕妊娠患者经门诊清宫及住院治疗的效果。记录妊娠物大小、是否有卵黄囊及胚芽、局部肌层厚度、治疗方式的选择及治疗后超声图像转归。结果：①根据超声图像分为包块型3例和孕囊型37例。②3例包块型均手术切除。③25例部分或大部分位于宫腔内孕囊型，行清宫或者手术切除。④12例位于疤痕处肌层内孕囊型，口服米非司酮、甲氨喋呤化疗及子宫动脉栓塞术后手术切除。结论：超声检查对于辨认是否为疤痕妊娠及妊娠囊与疤痕嵌合多少有意义，并可指导治疗方案的选择。

Objective: To investigate the clinical value of color Doppler ultrasonography in the diagnosis of scar pregnancy after cesarean section and its significance in the selection of treatment regimen. Methods: To retrospectively analyze 40 cases of ultrasound consideration of scar pregnancy in patients undergoing outpatient suction curettage and hospital treatment from Jan 2014 to Nov 2016. We recorded the size of the pregnancy, whether having yolk sac and germ, the thickness of local muscle, choice of treatment, and ultrasound image outcome after treatment. Results: ①According to the ultrasound image, there were 3 cases of mass type and 37 cases of gestational sac type. ②Three cases of mass type were all surgical resected. ③Twenty five cases were located in part or most of the intrauterine received curettage or surgical resection. ④Twelve cases were located in scar muscle layer, which were surgical resected after taking oral mifepristone, methotrexate chemotherapy and uterine artery embolization. Conclusions: Ultrasonography can be used to identify whether having scar pregnancy, and the embedment of gestational sac and scar mosaic, so as to guide the option of treatment.