Hypertension during pregnancy has symptoms such as dizziness, headaches and blurred vision. In severe cases, there are hazards such as organ damage, hypoproteinemia and restricted fetal development. Hypertension during pregnancy is a group of disorders in which pregnancy and elevated blood pressure coexist, and is prevalent in older, obese pregnant women. In mild cases, symptoms such as dizziness, headache and blurred vision may occur. When eclampsia occurs, convulsions, foaming at the mouth, muscle rigidity, and coma may occur. In severe cases, there are hazards such as organ damage, hypoproteinemia and restricted fetal development. Hypertensive patients during pregnancy should pay attention to controlling food intake, too much calorie intake will lead to excessive weight gain and the phenomenon of elevated blood pressure. It is important to relax in life and avoid excessive stress. Patients with high blood pressure during pregnancy can be treated with oral antihypertensive medications under the guidance of a doctor, such as amlodipine benzenesulfonate, nifedipine controlled release and so on. In addition, patients with hypertension during pregnancy should have regular obstetric checkups to monitor their blood pressure and keep it stable. If the blood pressure rises sharply, it is recommended that the patient go to the hospital in time.