Men’s blood pressure measurement is generally measured right arm blood pressure prevail, the first visit to the patient to measure blood pressure, it is best to measure the blood pressure of both arms at the same time, which arm blood pressure is high to take the blood pressure of which. Under normal circumstances the blood pressure of the right arm will be higher than the left hand, the brachial artery of the right arm is closer to the heart, the blood pressure will be high, measuring blood pressure most of the measurement of the right hand, generally the difference between the blood pressure of the left and right arm does not exceed 20 mmHg, if more than 20 mmHg, to consider subclavian artery stenosis or brachial artery stenosis. When measuring the blood pressure in the arm, take care to measure it after 5-10 minutes of quiet rest, it will be more accurate.