Leakage is a folk saying that refers to the presence of a premonitory miscarriage, which is usually most likely to occur in the early stages of pregnancy, when the embryo is in the most unstable state. In the case of preeclampsia, the first thing to do is to pay attention to rest, do not engage in strenuous exercise, and do not be able to coitus, but also avoid taking foods that have the nature of blood circulation. Pregnant women with preeclampsia need to be treated with fertility preservation, which can be done through medication, hospitalization and injections, and some traditional Chinese medicines are also effective in preserving the fetus. However, early pregnancy is the process of survival of the fittest, and the ultimate success of fertility preservation mainly depends on the embryo’s own vitality.