Symptoms of pre-eclampsia miscarriage after pregnancy can be treated with birth control. The symptoms of pre-eclampsia miscarriage are mainly vaginal bleeding, or pain in the lower abdomen. Especially if this phenomenon occurs in early pregnancy, further examination is needed because vaginal bleeding in early pregnancy may be a case of embryonic arrest, pre-eclampsia miscarriage, gravida, ectopic pregnancy, etc. If it is determined that the pregnancy is normal in the uterine cavity with symptoms of pre-eclampsia, progesterone or Chinese medicine can be applied to preserve the pregnancy. If the ultrasound does not see a gestational sac in the uterine cavity, further blood tests are needed to determine the pregnancy, and if the hCG in the blood is high and the gestational sac is not visible in the uterine cavity, be highly alert to the phenomenon of ectopic pregnancy.