• Gestational hypertension
• Preeclampsia
• Eclampsia
• Preeclampsia superimposed upon
• chronic hypertension
• Chronic hypertension

• 1、Blood pressure≥140/90mmHg
first onset in gestational period and recover within 12 weeks post partum
• 2、Urine protein negative
• 3、Patients may superimpose upper abdo- minal pain and thrombocytopenia
• 4、Final diagnosis should be made post partum

• 1、BP≥140/90mmHg before pregnancy or diagnosed before 20 weeks’ gestation
• 2、Hypertension first diagnosed after 20 weeks’ gestation and persistent after 12 weeks’ postpartum

Pre-eclampsia superimposed upon chronic hypertension

• New-onset proteinuria ≥300mg/24 hours in hypertensive women ，but no proteinuria before 20 weeks’ gestation；
• A sudden increase in proteinuria or blood pressure or platelet count< 100,000 /mm3 in women with hypertension and proteinuria， before 20 weeks’ gestation