Wrist sphygmomanometers measure blood pressure and are relatively accurate when operated correctly. However, if it is not operated correctly, the measured blood pressure value is not very accurate. When using a wrist sphygmomanometer, it is important to keep the arm in the same position as the heart, and to measure the blood pressure by measuring the pressure value of the fluctuating pulse, so as to avoid emotional excitement and too large a wrist amplitude, which may lead to incorrect measurements. Wrist sphygmomanometers, also known as electronic sphygmomanometers, are more common nowadays because they are more convenient for measuring blood pressure, gradually replacing mercury sphygmomanometers. Different manufacturers adopt different blood pressure measurement value databases, so the blood pressure values measured by blood pressure monitors from different manufacturers may be different; for some older people with less elastic arterial vessels, the measurement will not be accurate. It is recommended to use a wrist sphygmomanometer to measure blood pressure regularly and keep good records. Patients suffering from high blood pressure are advised to consult a doctor as soon as possible and take medication under the doctor’s guidance to control their blood pressure. In daily life, as far as possible to choose mercury sphygmomanometer, measurement more accurate, it is recommended that regular measurement of blood pressure, detection of blood pressure; in the diet, pay attention to light diet, eat less spicy and salty food, eat more vegetables and fruits, drink more water; strengthen the exercise, to improve the physical condition of the individual.