For patients with ectopic pregnancy, a series of early pregnancy symptoms such as nausea and vomiting may also occur if the level of HCG in the body is relatively high. Most patients with ectopic pregnancy do not have a high serum HCG level, so they rarely have early symptoms such as nausea and vomiting, and even when they do, the symptoms are relatively mild. The main symptoms of ectopic pregnancy are vaginal bleeding after menopause and accompanied by abdominal pain and pelvic masses. In severe cases, the mass may rupture, leading to hemorrhagic shock and increased abdominal pain. Therefore, in patients with ectopic pregnancy, nausea and vomiting are mostly indicative of a high HCG value, the possible location of the pregnancy and the strong activity of the villi. It is necessary to determine the location of the ectopic pregnancy and the size of the gestational sac according to the ultrasound results, and actively give medication and surgical treatment to reduce the bleeding in the abdominal cavity due to rupture of ectopic pregnancy and miscarriage, which can cause serious damage to the body.