目的:总结和探讨胎盘部位超常反应(EPS)的临床过程及误诊原因,提高对该疾病的认识。方法:回顾性分析19例胎盘部位超常反应患者的临床资料。结果:所有患者均存在不同程度的误诊和漏诊,均依靠术后病理确诊,经治疗后随访至今全部患者存活。结论:胎盘部位超常反应很难在产前或产时诊断,在分娩或流产后出血经常规处理效果不佳时,应考虑存在胎盘部位超常反应的可能,通过手术清除病灶,效果较好,术后标本需及时送病理以明确诊断。 OBJECTIVE: To summarize and explore the clinical course of misdiagnosis and the reason of placental abnormal reaction (EPS) and to raise awareness of the disease. Methods: A retrospective analysis of 19 cases of placental site abnormalities in patients with clinical data. Results: All patients had different degrees of misdiagnosis and missed diagnosis. All patients were diagnosed by postoperative pathology. All the patients survived after follow-up. Conclusion: Abnormal placental response is very difficult to diagnose before or during labor. When the conventional treatment of bleeding after abortion or abortion is ineffective, the possibility of abnormal response of the placenta should be considered. Surgical removal of the lesion is effective. After the specimen to be sent to the pathology in time to confirm the diagnosis.