Spontaneous abortion of ectopic pregnancy will be manifested by changes in human chorionic gonadotropin, abnormal vaginal bleeding and pain in the abdomen. 1. Changes of human chorionic gonadotropin: If ectopic pregnancy occurs, the body will produce the release of human chorionic gonadotropin, so when ectopic pregnancy first occurs, the level of this hormone in the blood will increase, and if spontaneous abortion occurs, the level of estrogen will decrease. 2. Abnormal vaginal bleeding: when ectopic pregnancy is aborted spontaneously, there will be bleeding in the vagina, but when bleeding occurs, it is necessary to clarify whether the fallopian tube is ruptured. 3. Small abdominal pain: ectopic pregnancy usually occurs in the fallopian tube, due to the stimulation of the enlarged gestational sac tissue, the fallopian tube will be swollen and painful, so it is manifested as small abdominal pain. If a woman has an ectopic pregnancy, she should go to the hospital in time to get medical treatment, to clarify the severity of the condition. Even if she has a spontaneous abortion, she should improve the examination to determine whether the pregnancy tissues are discharged completely.