The standard range for low pressure, also known as diastolic blood pressure, is 60-80 mmHg. Although theoretically this is the range, in actual clinical practice it is recommended that patients should preferably control their diastolic blood pressure at around 65-80 mmHg, so that they will benefit the most. It is not recommended to lower the diastolic blood pressure too low, because it can affect the perfusion of important organs, which is more harmful, such as low blood pressure may cause insufficient blood supply to the heart muscle and cerebral arteries. If you want to further evaluate whether the current low pressure is abnormal, you can also combine with ambulatory blood pressure monitoring for a systematic and objective assessment, and for patients with low diastolic blood pressure, you can take oral blood pressure drink to raise blood pressure.