is a complication of pregnancy in which the embryo implants outside the uterine cavity. Causes pelvic inflammatory disease, infertility, use of an intrauterine device (IUD), previous exposure to DES, tubal surgery, intrauterine surgery (e.g. D&C), smoking, previous ectopic pregnancy, and tubal ligation.[12] Classification Tubal pregnancy:The vast majority of ectopic pregnancies implant in the Fallopian tube Nontubal ectopicpregnancy:Two percent of ectopic pregnancies occur in the ovary, cervix, or are intraabdominal. Heterotopic pregnancy:In rare cases of ectopic pregnancy, there may be two fertilized eggs, one outside the uterus and the other inside. Persistent ectopic pregnancy: A persistent ectopic pregnancy refers to the continuation of trophoplastic growth after a surgical intervention to remove an ectopic pregnancy. Symptoms abdominal pain, the absence of menstrual periods (amenorrhea) vaginal bleeding or intermittent bleeding, nausea andbreast discomfort,Weakness, dizziness, low blood pressure ,shock. How is ectopic pregnancy diagnosed? pregnancy test. pelvic ultrasound & In rare cases, laparoscopy treatment Two surgical options are available; laparotomy and laparoscopy Medical therapy can also be successful in treating certain groups of women who have an ectopic pregnancy. About 35% of women with ectopic pregnancies are candidates for medical rather than surgical treatment. Medical treatment method involves the use of an anti-cancer drug called methotrexate (Rheumatrex, Trexall). This drug acts by killing the growing cells of the placenta.