Pre-eclampsia belongs to the group of hypertensive disorders of pregnancy, which is a dynamic disease that can progress to eclampsia. It is a dynamic disease that can progress to eclampsia. It is a disease that occurs after 20 weeks of gestation with elevated blood pressure accompanied by proteinuria, or without proteinuria, but with other systemic dysfunctions. ＜The onset of the disease at <34 weeks is characterized as early-onset preeclampsia, and the onset of the disease at ≥34 weeks is characterized as late-onset preeclampsia. Hypertensive disorders in pregnancy include gestational hypertension, preeclampsia, eclampsia, and chronic hypertension in pregnancy, etc. The disease can manifest itself in the form of reduced perfusion of various organ systems throughout the body, which is detrimental to the health of the mother and child. Pre-eclampsia can be mild or severe, and severe pre-eclampsia can develop into eclampsia. Pre-eclampsia is defined as elevated blood pressure after 20 weeks of gestation, i.e., systolic blood pressure ≥140 mmHg and/or diastolic blood pressure ≥90 mmHg, accompanied by random urinary protein (+) or urinary protein ≥0.3 g/24h, or the absence of proteinuria but in combination with one of the following conditions: hepatic impairment, renal impairment, thrombocytopenia, pulmonary edema. Pre-eclampsia with any of the following manifestations can be diagnosed as severe pre-eclampsia such as: systolic blood pressure ≥160 mmHg, or diastolic blood pressure ≥110 mmHg, hepatic impairment, severe persistent right upper abdominal or epigastric pain that cannot be explained by other diseases, or both, and renal impairment. Treatment of the disease includes sedation, hypotension, antispasmodic, timely monitoring and timely termination of pregnancy depending on the condition of the mother and child. Patients with this disease are advised to undergo early and regular treatment.