As many as 200 million people have hypertension in China, and with the increase in population and accelerated aging, the number of hypertensive patients will continue to increase. However, according to the survey results, the awareness rate and control rate of hypertension in our population are low. One of the important reasons is that the general public does not understand the law of blood pressure fluctuations, or measurement methods are not standardized. So how to properly measure blood pressure? First, hypertensive patients should develop the good habit of self-measurement of blood pressure at home. Depending on the measurement period, the physical condition of the day, the amount of exercise and diet and other conditions, blood pressure will produce different changes. The blood pressure measured in the hospital is sometimes not accurate. A person’s blood pressure can also fluctuate during the course of a day. It is lower when sleeping and higher when exercising. Generally, a person’s blood pressure rises from dawn and peaks when he or she first wakes up. Therefore, the risk of sudden death due to cerebral infarction is greater in the morning. In addition: This shows that blood pressure is affected by a person’s mood and can change. Therefore, to properly grasp blood pressure levels, one should insist on self-measuring blood pressure at home every day. The first thing to do is to choose a blood pressure monitor that suits your needs. For ease of operation and accuracy, it is best to use an upper-arm electronic sphygmomanometer for home blood pressure monitoring. Generally speaking, you should make sure that you take your blood pressure measurement once in the morning and once in the evening, and it is better to fix the time of self-measurement every day. In order to correctly measure blood pressure, you also need to pay attention to the following points: Third, the correct use of home blood pressure monitor (upper arm type)