Elderly people with low blood pressure of 80/60mmHg do not need special treatment if the cause is physiological, but if the cause is pathologic, treatment will be carried out according to the specific cause. 1. Physiological reasons: some older people due to the thinness of the body, usually blood pressure is slightly lower, can be as low as 80/60mmHg, at the same time there is no special discomfort, there is no body organ ischemia, hypoxia and other symptoms, this situation for physiological factors, usually strengthen the nutrition, monitoring blood pressure can be, without special treatment. 2. Pathological causes: for most of the elderly systolic blood pressure ≥90mmHg, diastolic blood pressure ≥60mmHg, when there is acute myocardial infarction, hemorrhage, infection, allergies and other diseases, can cause the elderly blood pressure decrease, need to consult the doctor in time, under the guidance of the physician for professional treatment, improve the low blood pressure situation. 3. For acute myocardial infarction, acute ischemia of myocardium causes heart pumping failure, which leads to lower blood pressure, timely intervention is needed to open the blocked blood vessels, and timely administration of antiplatelet drugs such as aspirin, clopidogrel, etc., lipid-lowering drugs such as atorvastatin and pitavastatin. 4. Patients with hemorrhage cause a sharp decrease in blood volume, resulting in hypotension, which requires rehydration to raise blood pressure and other treatments. Infection and allergy can cause vasodilatation, so that the blood volume is insufficient to cause hypotension. Infection requires active intravenous use of anti-infection drugs such as penicillin, cephalosporin, etc., and allergy requires active anti-allergy treatment such as glucocorticoids. For the elderly suddenly appeared low blood pressure, it is recommended to consult the doctor in time, improve the relevant examination to clarify the cause of the disease, timely treatment, do not unauthorized treatment, to avoid the adverse consequences.