Blood pressure low pressure that is diastolic blood pressure, diastolic blood pressure more than 50 mmHg, generally belongs to the mild lowering, is not considered low serious. The normal range of diastolic blood pressure is between 60 and 90 mmHg, and more than 50 mmHg belongs to a mild lowering. A mild decrease in blood pressure level does not have a serious effect on the attention of vital organs, but it should be observed continuously and patients with symptoms should go to the hospital in time. The occurrence of systolic blood pressure and the peripheral resistance of blood vessels, diastolic blood pressure to remain within a certain range is conducive to the perfusion of vital organs, especially for the heart is very important. A mild decrease in diastolic blood pressure has a relatively low effect on the body, and a severe decrease results in a lower pressure for perfusion, which may lead to insufficient blood supply to vital organs. Patients with low diastolic blood pressure should pay attention to observing the changes in their condition and go to the hospital in time, pay attention to finding the primary cause of the disease, and actively treat the primary disease under the guidance of the doctor to avoid adverse consequences.