High blood pressure for several days to clarify whether it is hypertensive disease, the general diagnosis of hypertension to non-same day three times high blood pressure to be diagnosed as hypertension. If hypertension is determined, it is necessary to exclude some factors that cause a temporary increase in blood pressure, such as poor sleep, emotional stress, mental tension, taking hormonal drugs and other factors that cause a temporary increase in blood pressure. If none of these factors are responsible, consider chronic hypertension. If the blood pressure reaches 160/100 mmHg, treatment with antihypertensive drugs is required to avoid cardiovascular complications.