Diastolic blood pressure 53 mm Hg physiological causes are generally not dangerous, pathological causes are at some risk. 1. Physiological causes: under normal circumstances, the normal range of diastolic blood pressure between 60 ~ 89 mmHg, so diastolic blood pressure 53 mmHg is lower than the normal level, part of the young women due to the presence of physiological hereditary factors can also lead to low blood pressure, but generally there are no obvious clinical symptoms, do not need to carry out special treatment. 2. Pathological causes: Pathological hypotension is often dangerous, such as heart failure, aortic valve insufficiency, need to be actively given treatment, patients with shock should be treated for the cause of shock, the use of antihypertensive drugs when the dose is too large will lead to a decrease in blood pressure, the need to reduce the dosage of drugs. When the blood pressure level is too low, it is recommended to consult the cardiovascular department of the regular hospital.