Ectopic pregnancy used to be commonly referred to as "宫外孕". In fact, it is known as ectopic pregnancy, which means that the fertilized egg implants outside the uterine cavity. A normal pregnancy occurs in the uterine cavity, but if it occurs outside the uterine cavity, it is called ectopic pregnancy. Ectopic pregnancy includes tubal pregnancy, ovarian pregnancy, abdominal pregnancy, broad ligament pregnancy, cervical pregnancy, cornual pregnancy, etc. These are all types of ectopic pregnancies, with tubal pregnancy being the most common clinically.