In general, the decrease of HCG is slow with conservative treatment of ectopic pregnancy, however, there is a standard for this slowness. If the patient’s HCG can drop more than 15% in a week, it proves that the patient’s treatment is effective and can be further observed. If the HCG drops less than 15% or rises after one week of treatment, it proves that the treatment is not effective and the patient can choose to have surgery directly or use another cycle of conservative treatment. On the fourth and seventh day of the conservative treatment, the HCG will be checked again and its decrease will be observed. If the drop is still less than 15% or there is a continuous rise, it proves that the conservative treatment is a failure and the patient must do surgery to avoid rupture and hemorrhage easily for too long.