Early symptoms of ectopic pregnancy are not obvious because the embryo is not fully developed, so the early symptoms are almost the same as normal pregnancy reactions. Such as menopause, nausea, vomiting, frequent urination, fatigue or sore breasts. However, early ectopic pregnancy can result in having unilateral pain in the small abdomen due to ectopic pregnancy. Normally, the fertilized egg should settle in the uterine cavity. If the pregnant egg settles in a location outside the uterine cavity, it is considered an ectopic pregnancy. When the fallopian tubes are not very open, the fertilized egg will grow and develop in the fallopian tube, causing abdominal pain, bleeding and even shock. The typical symptoms of ectopic pregnancy include the following: 1. Menopause: Like normal pregnancy, ectopic pregnancy is associated with menopause. Patients often have a history of menopause of 6-8 weeks, but a few patients do not have a history of menopause; 2. Vaginal bleeding: due to rupture of tubal pregnancy or miscarriage, most patients with ectopic pregnancy may have a small amount of irregular vaginal bleeding, dark brown or dark red in color, in the form of drops, and some patients may have no vaginal bleeding or the amount of bleeding is similar to menstruation; 3. Abdominal pain: abdominal pain is the main symptom of ectopic pregnancy, and due to rupture of tubal pregnancy, it may Sudden unilateral paroxysmal or tearing pain in the lower abdomen; 4. Shock: If the patient has excessive bleeding and severe pain, it may cause syncope in mild cases and hemorrhagic shock in severe cases.