Patients with hypertension are recommended to monitor their blood pressure at home, because going to the hospital because of stress, fatigue, anxiety, poor rest and other factors lead to the blood pressure measured at the doctor is generally high, but to measure blood pressure at home to master the correct method: the choice of measurement time: it is recommended to measure once in the morning and once in the evening, in the morning before taking medication, and in the evening before going to bed is possible. The position of the measurement: try to relax yourself, you can take a long breath and then slowly exhale, repeat several times to let yourself relax, your back can lean on the back of the chair for support, do not cross your legs or stilt legs. Left and right hand selection: You can measure the blood pressure of your left hand and right hand in advance, if the difference is 5-10mmHg, it is normal, choose an arm that you feel convenient, and fix this arm when you monitor your blood pressure later. The number of times to measure blood pressure each time: we will find that each time the measured blood pressure value is different, often the first time the highest, after some lower, this situation is also normal, so I recommend that each time the blood pressure measurement should be measured three times in a row, each interval of about 1 minute, and then take the average, so that the calculated blood pressure value will be more accurate. The choice of sphygmomanometer: home self-measurement of blood pressure is recommended to use electronic sphygmomanometer, there are many brands on the market are good, to use the upper arm brachial artery sphygmomanometer, some patients like to use the wrist sphygmomanometer is not recommended, because the wrist sphygmomanometer can not accurately reflect the true blood pressure value. Recording method: You can use a notebook to record the measured blood pressure value every day and bring it to the doctor’s office visit, so that it can help the doctor adjust the medication. There are also some APPs that help patients monitor their blood pressure, and it is also good to enter the measured values to give the blood pressure curve in real time.