Pre-eclampsia refers to the appearance of abortion symptoms such as small abdominal pain and vaginal bleeding at less than 28 weeks of pregnancy. Depending on the time of vaginal bleeding and how long the blood accumulates in the vagina, the color can be bright red, pink or dark brown. When vaginal bleeding first occurs in pre-eclampsia, the amount of blood is small, accompanied by vaginal discharge, and can be light red, or bright red if the amount of blood is large. If the blood stays in the vagina for too long after oxidation occurs, it is discharged brown or dark red. After the onset of pre-eclampsia, when the pregnancy and the fetus are in good condition in the early stages, the pregnant woman can be treated with strict bed rest and timely fetal preservation, usually with hormones. Pregnant women need to maintain a good state of mind and actively supplement nutrition during this period. Generally, after 5-7 days of medication, the symptoms can improve and the fetus can continue to grow and develop. When a pregnant woman experiences a continuous increase in vaginal bleeding, increased lower abdominal pain and increased vaginal discharge, it may indicate that the fetal membrane has ruptured, the embryonic tissue has detached from the uterus and reached the vagina, and the pre-eclampsia miscarriage has developed into a refractory miscarriage. In this case, abortion or induction of labor should be performed under the guidance of a doctor, and the ultrasound should be reviewed promptly after the operation to check for intrauterine residues.