Possible causes of high low blood pressure include genetic causes, dietary and lifestyle causes, disease causes, etc. For those who clearly have diastolic hypertension, they can be treated with calcium channel blockers, beta-blockers, etc., such as amlodipine, bisoprolol, etc., as appropriate, under the guidance of a physician. 1. Causes of high low pressure (1) Genetic causes: hypertension has a certain genetic predisposition, if the incidence of hypertension in the immediate family is high, it is necessary to be alert to diastolic hypertension caused by heredity. (2) Dietary and lifestyle reasons: long-term high-salt diet, long-term mental anxiety and stress, obesity and other factors may trigger the increase of low pressure. (3) Disease causes: vascular lesions such as small peripheral arteries will increase the resistance to ejection, so that more blood is retained in the large arteries during diastole, causing diastolic hypertension. 2. Oral drug treatment: Oral drug treatment needs to be carried out on the basis of a clear diagnosis of diastolic hypertension and active general treatment has been carried out. (1) Calcium channel blockers: these include amlodipine, nifedipine and other drugs. However, it should be noted that drug allergy, pregnancy, breastfeeding, etc. are prohibited; liver and kidney function is seriously impaired people are advised to use this drug with caution. (2) Beta-blockers: including metoprolol, bisoprolol and other drugs. However, it should be noted that low blood pressure, shock, severe heart failure, peripheral vascular disease and poor peripheral circulation, heart conduction block and other diseases, prohibit the use of this drug. The above drugs need to be used under the guidance of a clinician; in case of recurrent low blood pressure, it is recommended to go to the hospital in time.