Pre-eclampsia refers to a small amount of vaginal bleeding before 28 weeks of pregnancy followed by paroxysmal lower abdominal pain or back pain. Pre-eclampsia without birth control does not always develop into inevitable miscarriage. Pre-eclampsia miscarriage without birth control may have two outcomes. In one case, the fetus is in relatively good condition, the pregnant woman can improve naturally after rest, the symptoms of miscarriage disappear and the fetus can continue to develop normally. The other situation is that the pregnant woman has increased vaginal bleeding, increased paroxysmal lower abdominal pain, or vaginal fluid flow, rupture of fetal membranes, and vaginal examination shows that the cervical opening has been dilated, and even the fetal sac or pregnancy tissue can be seen blocking the inner cervical opening, indicating that inevitable miscarriage has occurred. If the pregnant woman does not want to continue the pregnancy after the occurrence of preterm miscarriage, it is recommended to undergo a regular abortion or induction of labor under medical supervision. If you want to continue the pregnancy, you need to actively seek medical attention for fetal preservation treatment. If no treatment is done, it may increase the risk of infection, and if the embryonic tissue cannot be completely expelled from the uterine cavity, it may lead to indolent miscarriage, which is hazardous to health, and in this case, it is necessary to perform a clearance operation, which is also risky, so it is recommended to keep the pregnancy after a preterm miscarriage.