“…Among these are preceding manipulation of the endocervical canal; for example, cervical or miscarriage curettage, the presence of an IUD, endometriosis in the cervical portion of the uterus enabling nidation of the ovum, endomyometritis, anatomic abnormalities such as Asherman's syndrome, fibroids, intrauterine adhesions, previous cesarean section and uterine surgery in general, assisted reproduction techniques, and a history of diethylstilbestrol exposure [4,[6][7][8][9][10]. A history of uterine curettage is considered to be the main risk factor and can be found in up to 70%, or in some reports even more, of cervical pregnancies [2,11,12]. Cigarette smoking has been detected to be a moderate risk factor for EPs in general [13].…”