Bleeding like menstruation after pregnancy is not normal and needs to be checked promptly at the hospital. If this happens in early pregnancy, it is considered that there is a possibility of pre-eclampsia and an ultrasound should be performed to determine if the fetus is still alive. As long as the fetus is still alive, the pregnancy can be continued and rest and fetal preservation treatment will be recommended. If bleeding like menstrual flow occurs in the middle of pregnancy, it should be taken into consideration that the placenta may be low or the bleeding may be caused by placental abruption, which should be taken seriously by the pregnant woman. Severe bleeding may lead to fetal distress, anemia, infection, or even fetal death or hemorrhage in the mother’s body.