Diastolic blood pressure is 43mmHg, there is a danger, has been far below the normal blood pressure, should be promptly consulted. The normal standard of diastolic blood pressure is 60~90mmHg, if the blood pressure is lower than 60mmHg when measuring the blood pressure, the blood pressure is low, it should be considered whether it has some kind of disease or not, and the common causes of low blood pressure include physiological factors or pathological factors. Diastolic blood pressure of 43mmHg is generally considered to be caused by pathological factors such as neurological diseases, endocrine metabolic diseases, cardiovascular diseases, blood volume insufficiency, etc., and requires timely treatment. When severe hypotension is often accompanied by dizziness, headache, fainting, coma and other phenomena, the lack of peripheral blood perfusion can also lead to the emergence of oliguria, anuria and other phenomena, diastolic blood pressure of 43mmHg when there is a danger, should go to the hospital in a timely manner, under the guidance of the doctor to carry out treatment.