Ectopic pregnancy is a pregnancy in which the fertilized egg is planted outside the uterine cavity and develops, which we used to call ectopic pregnancy, and in written language it is called ectopic pregnancy. Ectopic pregnancy is routinely divided into many types according to the different sites where the fertilized egg is implanted, the most common type of which is tubal pregnancy, and the others are ovarian pregnancy, abdominal pregnancy, broad ligament pregnancy, and cervical pregnancy. Over the years, through the development of hysteroscopic technology or ultrasound technology, in recent years there is another type of ectopic pregnancy has been found to be on the rise year by year, that is to say, with the increasing rate of cesarean section, now found a lot of cesarean section scar pregnancy, which is commonly known as cesarean section scar pregnancy, and this has been gradually found to be more and more. In addition, there is another type of ectopic pregnancy called uterine stump pregnancy, which is caused by uterine deformity, and the site of this pregnancy is deposited in the uterine stump, which is now also categorized as a special type of ectopic pregnancy. So above is the concept of ectopic pregnancy and the common types of ectopic pregnancies we talked about.