Urine HCG positive and vaginal bleeding, not menstruation, can be considered miscarriage, ectopic pregnancy, etc. or gestational trophoblastic tumors, then usually need to check the serum HCG, serum progesterone, B-type ultrasound to differential diagnosis. Miscarriage can be categorized as preeclampsia, complicated miscarriage, incomplete miscarriage, or retained miscarriage, and different treatments are usually needed depending on the situation. Ectopic pregnancy may have symptoms such as irregular vaginal bleeding and abdominal pain, which can be treated conservatively or surgically. Gestational trophoblastic diseases with high serum HCG values often require diagnostic curettage and tissue delivery for definitive diagnosis.