Low blood pressure, also known as diastolic blood pressure, is as high as 100 mmHg. If it is clear that it is primary hypertension, you can first improve your lifestyle and choose antihypertensive drugs such as nifedipine and metoprolol if necessary. If it is secondary hypertension, antihypertensive drugs are needed to cooperate with primary disease medication. Normally, the blood pressure of normal adults fluctuates between 100~120/80~89mmHg. If the diastolic blood pressure is 100mmHg, systolic blood pressure in the normal blood pressure fluctuation range or ≥140mHhg, it may belong to the range of grade 1 hypertension or above. First of all, under the guidance of a doctor, relevant examinations can be completed to clarify whether it is primary hypertension or secondary hypertension. 1. If it is clear that it is primary hypertension, it can be treated by reducing sodium and fat intake and other lifestyle interventions to lower blood pressure. If it still cannot be effectively controlled, it can be treated with antihypertensive drugs such as erapril, nifedipine, amlodipine, metoprolol, and so on under the guidance of a doctor. 2. If it is clear that it is secondary hypertension, such as renal hypertension, it is necessary to strictly limit the intake of sodium, and if necessary, perform kidney transplantation to treat the primary disease, and at the same time with enalapril, valsartan and other medications to lower blood pressure; while cortisolism requires the choice of drugs such as ergometrine, metipranolone and other medications and surgical resection to treat the primary disease, and at the same time requires hydrochlorothiazide combined with nifedipine and other medications to lower blood pressure treatment. When the above symptoms appear, it is recommended to go to the hospital in time, after the doctor comprehensively evaluates the condition, to decide the specific drug treatment plan.