For how to count hypertension, there are 3 ways to judge: first, measure office blood pressure, that is, go to the hospital to find a doctor, rest for 5-10 minutes, in the absence of oral antihypertensive drugs, no history of hypertension, correctly measure office blood pressure, if non-same day multiple measurements of blood pressure are ≥ 140/90mmHg, can be diagnosed as hypertension. If the patient has a previous history of hypertension, oral antihypertensive drugs, blood pressure measurement is normal, can still be diagnosed as hypertension. Secondly, it can be diagnosed as hypertension through home self-measurement of blood pressure, buy a qualified home self-measurement of blood pressure meter, measure blood pressure throughout the day, randomly, if the average blood pressure throughout the day ≥135/85mmHg, it can be diagnosed as hypertension. Third, ambulatory blood pressure measurement, measuring blood pressure for 24 hours, calculating the average value, if the average value of ambulatory blood pressure throughout the day ≥ 130/80mmHg, it is also considered hypertension.