Primary hypertension is a chronic disease that requires constant or even lifelong treatment, to be prepared to “fight a protracted war”, but in reality, many patients have great misconceptions about prevention and treatment: 1, misconception 1: self-perception to estimate the high and low blood pressure hypertensive patients after a period of time, tolerance, no symptoms, in fact, blood pressure is still high. And the severity of symptoms and blood pressure is not necessarily proportional to the degree of high or low. The correct approach is to take the initiative to measure blood pressure regularly, at least twice a week. 2, misconception two: blood pressure a drop, immediately stop the drug After the application of blood pressure drug treatment, blood pressure down to normal, mainly because of the role of antihypertensive drugs, such as their own discontinuation, blood pressure will rise, so that not only can not achieve the therapeutic effect, and because of the blood pressure fluctuations, will cause heart, brain, kidney serious complications, such as cerebral hemorrhage. The correct way to take medication is to reduce blood pressure to the “target” value after medication, you can use the maintenance amount to continue to take medication, or under the guidance of the doctor to adjust the drug, rather than categorically stop medication.