If there are symptoms of miscarriage in the first month of pregnancy, there are usually several main manifestations: the first one is the stoppage of menstruation. Generally, if the menstrual period is delayed for more than 3 days and does not come, consider that you may be pregnant. The second, vaginal bleeding occurs after menopause. Most of the patients with preeclampsia will have bleeding, and the color of the bleeding is usually dark brown or light red, if the bleeding is relatively small, it is usually preeclampsia, and if the bleeding is relatively large, it is usually considered to be difficult to avoid miscarriage. Third, abdominal pain. Many patients with miscarriage will experience mild abdominal pain, which is usually similar to menstrual cramps, and occasionally accompanied by lumbar pain and anal distension. If the above symptoms occur, it means that the fetus has been miscarried, it is recommended to go to the hospital in time to do a checkup to see if there is still hope for preservation of the fetus.