The symptom and sign of the corpus luteum hemorrhage is lower abdominal pain and tenderness so differential diagnosis with ectopic pregnancy is needed.

The sonographic findings of corpus luteum hemorrhage is free blood in cul de sac and adnexal mass. In the case of hemorrhagic corpus luteum of the considerable size with evidence ofintraperitoneal hemorrhage, operative intervention may be necessary. But operation is complicated and have some hazard.

So we reported these cases of hemorrhagic corpus luteum with intraperitoneal hemorrhagetreated by transvaginal sonogrphy successfuly.