Ectopic pregnancy refers to an abnormal pregnancy in which the fertilized egg lays outside the uterine cavity, with tubal pregnancy being the most common. It is often caused by inflammation in or around the tubal lumen, resulting in poor patency of the lumen, which prevents the normalization of the pregnant egg, allowing it to stay, settle and develop in the fallopian tube, resulting in miscarriage or rupture of the tubal pregnancy. The common early symptoms are as follows: 1. Menopause: most patients with ectopic pregnancy will have a brief history of menopause and also show some early pregnancy reactions, such as nausea and vomiting, and a positive pregnancy test; 2. Pallor: patients with ectopic pregnancy may have a bloodless face, showing a pale complexion, accompanied by dry mouth, coldness, weakness and palpitations; 3. Vaginal bleeding: after the embryo dies outside the uterus, there will be Irregular vaginal bleeding, which may be in the form of drops, dark brown in color, small amount, usually not more than the amount of menstruation, and may appear as dripping; 4. abdominal pain: the incidence of abdominal pain is higher in patients with ectopic pregnancy, mainly due to various reasons such as tubal dilatation, rupture and blood stimulation of peritoneum, etc. It is usually sudden tearing or paroxysmal pain on one side of the lower abdomen, and nausea and vomiting may occur; 5. fainting and Shock: acute intra-abdominal bleeding in patients with ectopic pregnancy may cause blood volume reduction, severe abdominal pain, fainting in mild cases and possible coma in severe cases.