The normal HCG value is less than 3mIU/mL. If the patient’s HCG value is greater than 3mIU/mL, combined with the patient’s medical history, if there is a delay in menstruation, consider the possibility of pregnancy. If the patient’s menopause is more than 40 days, gynecologic ultrasound can be performed to clarify the diagnosis. If the patient’s gynecological ultrasound indicates early intrauterine pregnancy, further progesterone check is needed, and if the progesterone is low, further progesterone supplementation is needed for treatment. If the patient’s gynecological ultrasound reveals an ectopic suspicious mass, it needs to be combined with the HCG value. If the HCG is <2000mIU/mL, conservative treatment can be chosen; if the blood HCG is >2000mIU/mL or the condition develops further, etc., surgical treatment can be considered.