Ectopic pregnancy is when a fertilized egg implants and develops in a location other than the endometrium, usually the fallopian tube (accounting for 95%), ovary, abdominal cavity or cervix. The location of the implantation does not have the function of containing the fetus, so there is a risk of rupture, causing a lot of blood loss and quickly affecting the life of the pregnant woman if not detected early and intervened promptly.