The difference between blood pressure measurements taken lying down and those taken sitting down may not be significant. When measuring blood pressure, the heart and the limb being measured are usually kept level, so the results of blood pressure measurements, whether taken lying down or sitting down, are more accurate and the difference is not very great. Blood pressure is the pressure exerted by blood flow on the walls of blood vessels, and the functioning of the circulatory system can be understood through the measurement of blood pressure. It is necessary to be quiet for 10 to 15 minutes first when measuring blood pressure, and you can choose to measure your blood pressure in a sitting or lying position in a resting state, and the values obtained are clinically significant. Blood pressure and changes in body position may not have a great relationship, as long as the measurement method is correct, usually get accurate values, if the blood pressure is abnormally high, be sure to consult a doctor in time for treatment.