Ectopic pregnancy with embryocidal injection for three days without bleeding can be first observed, HCG test to determine the results of treatment. Ectopic pregnancy using embryonic injection for treatment, generally belongs to the conservative treatment of ectopic pregnancy, the general judgment of success or not, is based on the reduction of HCG level to judge, and not based on whether the blood to judge. Clinically for the early ectopic pregnancy, the gestational sac volume is relatively small, the symptoms are not obvious, you can choose the conservative way of treatment, can be injected extracorporeally to kill the embryo of the drug. Only according to the size of the gestational sac and the change of HCG level to see whether it is successful or not. It should be noted that in the process of conservative treatment should pay attention to closely monitor the clinical symptoms, once obvious abdominal pain, bleeding, need to promptly consult a doctor for observation.