Although a higher incidence of ectopic pregnancy has been reported after in vitro fertilization(IVF) and embryo transfer(ET), five ectopic pregnancies in one patient is very rare. We experienced a case of combined interstitial and intrauterine pregnancy as fifth ectopic pregnancies after in vitro fertilization and embryo transfer in one patient with history of bilateral salpingectomy due to previous four tubal pregnancies. Repeated transvaginal ultrasound examinations confirmed heterotopic pregnancy. In IVF-ET, bilateral salpingectomy does not remove the risk of interstitial or cornual pregnancy.