Korean J Fertil Steril.  2006 Mar;33(1):69-73.

A Case of Heterotopic Pregnancy in a Natural Cycle

  • 1Department of Obstetrics & Gynecology, National Police Hospital, Seoul, Korea. starjoon77@naver.com


Heterotopic pregnancy is the coexistency of intrauterine and extrauterine pregnancy. The incidence of heterotopic pregnancy is about 1 to 30,000 pregnancy in a natural cycle. However, the frequency of heterotopic pregnancy has steadily increased because of rising incidence of pelvic inflammatory disease, pelvic surgery and the development of ovulation induction and assisted reproduction. Because heterotopic pregnancy is difficult to diagnose and it has high morbidity and mortality rate, one should always take this into consideration and should conduct careful and thorough gynecologic evaluation. We have experienced a case of heterotopic pregnancy in a 29-year old woman who presented with acute abdominal pain in a natural cycle and report this case with a brief review of literature.


Heterotopic pregnancy; Natural cycle
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