Conservative treatment of ectopic pregnancy requires the use of the anti-cancer drug methotrexate. Before the chemotherapy injection, the blood routine, liver function and kidney function should be checked first, and they can be used only under normal conditions. The side effects of methotrexate drugs are: 1. inhibit bone marrow, affect platelets, and easily lead to a decrease in white blood cells. 2. have certain effects on liver function. 3. have certain damage to kidney function. 4. easily lead to hair loss, skin pigmentation, and drug pneumonia. 5. easily lead to gastrointestinal reactions, such as nausea, vomiting, gastritis, diarrhea, mouth ulcers, pharyngitis, etc.