Pre-eclampsia generally refers to the manifestation of vaginal bleeding in women before the 28th week of pregnancy, usually in small amounts, sporadically, in drips and drops, or in small but dripping amounts. The color is light red, dark red, or a bloody leukorrhea discharge, occasionally light brown. Usually the blood is light red or bright red when it flows from the blood vessels. Because of the small amount of bleeding, it tends to accumulate in the uterus, cervix, and vagina and can become oxidized, resulting in a deeper color. Pre-eclampsia has no discharge of pregnancy and may be accompanied by pain in the lower abdomen or lower back in some women. However, for women during pregnancy, any discharge of bloody vaginal discharge should be a cause for concern. If the condition of pre-eclampsia has no obvious effect on the fetus after examination, most of them can be relieved after proper rest. If a woman has abnormal hormone levels, it is recommended to promptly carry out fetal preservation treatment, such as progesterone injection or oral progesterone preparations, thyroid tablets, etc. to adjust the hormone levels of the body as prescribed by the doctor, and ultrasound examination after treatment to ensure the survival of the embryo. If the symptoms continue to worsen, the bleeding increases, and the ultrasound examination indicates abnormal embryo development or the blood HCG does not increase or even decreases, it is possible that inevitable miscarriage has occurred.