Ectopic pregnancy is a pregnancy in which the egg does not settle in the uterine cavity for some reason, most often in the fallopian tube. Due to the thin wall and small lumen of the fallopian tube, once the egg has settled in such a “land”, the embryo cannot develop normally and causes miscarriage, or the egg grows larger and causes the fallopian tube to rupture, resulting in hemorrhage, shock or even death. The early pregnancy reaction and pregnancy test are the same as normal pregnancy. Vaginal bleeding and abdominal pain are often present, with an inconspicuous enlargement of the uterus and a mass in the adnexa, which can be confirmed by ultrasound. In case of rupture of ectopic pregnancy, the symptoms intensify and dangerous phenomena such as severe abdominal pain and shock occur, which should be sent to hospital for treatment without delay, otherwise it may be life-threatening.