The chemotherapy injection for ectopic pregnancy should show nausea, vomiting or stomach pain two days after the injection, indicating that the effect has been seen. Vaginal bleeding or uncomfortable symptoms may occur during the treatment with the drug, which are side effects of chemotherapy drugs. Methotrexate should be injected intramuscularly, which will cause the destruction of the chorionic hair tissue, stop the proliferation, and cause the embryonic tissue to necrotize, fall off, or be absorbed. If the HCG value decreases and the stomach pain is not particularly severe and the bleeding is not too heavy, it means that the conservative treatment is more effective and symptomatic treatment should be taken according to individual clinical symptoms.