If the patient’s blood pressure is at a high pressure of 180 mmHg, although there are no symptoms, but still need continuous treatment, because at this time can be diagnosed as hypertensive disease grade 3, will cause functional damage to the main organs and the corresponding target organs, for example, the main damage to the cerebral vessels, cardiovascular and kidney, will cause cerebral atherosclerosis, coronary atherosclerosis, glomerular and renal artery stenosis, increased pressure in the renal artery. Long-term high pressure at 180 mmHg will lead to increased pressure in the blood vessels, so that the lumen lining is damaged, which will lead to increased brittleness and decreased elasticity, which will cause cerebral infarction brain embolism, cerebral hemorrhage, coronary heart disease and a series of diseases. Although patients have no symptoms, they still need to take antihypertensive drugs continuously, regularly and for a long time for blood pressure control and treatment.