The symptoms are mainly vaginal bleeding and abdominal pain after menopause, and changes such as dilated cervical opening can be seen in gynecological examination. 1. vaginal bleeding: the amount of vaginal bleeding during refractory miscarriage is high, the same as or even more than the amount of menstruation, and sometimes there are blood clots. after the embryo is completely separated and expelled, the uterus contracts before the bleeding stops. If the fetal membrane ruptures, vaginal fluid will appear; 2. Abdominal pain: Inevitably, abdominal pain will occur due to uterine contraction during miscarriage, usually manifested as paroxysmal lower abdominal pain, which is more intense. Clinical gynecological examination shows that the cervical opening has been dilated, sometimes embryonic tissue or amniotic sac is seen blocking the cervical opening, and the size of the uterus basically matches or is slightly smaller than the number of weeks of menopause. Refractory miscarriage is a stage of spontaneous miscarriage that refers to the inevitability of miscarriage. Once the diagnosis of refractory miscarriage is confirmed, the embryo and placental tissue should be completely expelled as soon as possible. Check for complete expulsion and, if necessary, scrape the uterus to remove the residual pregnancy in the uterine cavity. If there is excessive bleeding, active correction of shock and postoperative antibiotics to prevent infection are also required.