If the patient’s systolic blood pressure is 160 mmHg and diastolic blood pressure is 90 mmHg, this is abnormal and is secondary hypertension, or moderate hypertension. It is important to identify the cause of the elevated blood pressure and further identify whether it is primary or secondary hypertension. If it is secondary hypertension, we should treat the disease that causes the elevated blood pressure, and if it is primary hypertension, we should treat it with oral antihypertensive drugs. The dose of antihypertensive drugs can be gradually reduced, and it is not excluded that some patients may stop taking antihypertensive drugs. During the course of medication, blood pressure should be closely monitored, and patients are also advised to do ambulatory blood pressure monitoring.