A blood pressure of 91/61mmHg is a normal low value blood pressure, and the normal blood pressure range is 90~120mmHg systolic and 60~90mmHg diastolic. Due to individual differences and measurement differences, and human blood pressure has a daily rhythm, different time different state measurement of blood pressure, blood pressure levels often fluctuate. If the blood pressure is usually low in the resting state, the measurement of blood pressure 91/61mmHg, within the normal blood pressure range, if there is no obvious discomfort, no special treatment is needed. If the combination of dizziness, blurred vision, fatigue, or even fainting and other manifestations of low blood pressure, it is necessary to immediately seek medical attention to identify the cause of the disease and actively treat it, and do not delay, so as not to cause adverse consequences.