Uterine artery pseudo aneurysm is a rare cause of late postpartum hemorrhage following Cesarean or uncomplicated vaginal delivery, gynecologic surgery such as dilatation and curettage, hysterectomy and myomectomy. In this article a case of uterine artery pseudo aneurysm is introduced. Patient is a 27-year-old female, Gravida2 Para 2 who presented to the emergency department with episode of heavy vaginal bleeding after a cesarean section in 42 days ago. In clinical examination there was no pathological sign except paleness and agitation. In gynecological examination there was vaginal bleeding more than normal menstruation bleeding, cervix was dilated 1 centimeter and uterus was about 14 weeks of pregnancy. A diagnosis of pseudo aneurysm of the uterine artery was diagnosed by Doppler ultrasonography and Total abdominal hysterectomy was performed. The aim of presenting this case is emphasis on considering uterine artery pseudo aneurysm as one of the causes of late postpartum hemorrhage. In these situations Doppler ultrasonography is essential for diagnosis. Patient situation and hospital equipments determine treatment methods.