Objective:To discuss the diagnosis and treatment of persistent ectopic pregnancy(PEP) in order to prevent and reduce the incidence of the disease.Methods:15 PEP patients were studied retrospectively from March 2005 to December 2009.Results:10 cases of PEP occurred after laparoscopic surgery,5 happened at laparotomy,3 cases after salpingectomy and 12 cases after conservative operation of tubal pregnancy.Conclusion:Taking proper preventive measures is the key to reduce the rate of PEP.It is important to asses...