Hypertension is a chronic disease, and hypertension includes primary and secondary hypertension. More than 95% of people with hypertension have primary hypertension, and the history of primary hypertension is relatively long, and most patients only know they have hypertension when their blood pressure rises during a physical examination. The treatment of hypertension is also relatively long, hypertensive patients need to take antihypertensive drugs for years to keep their blood pressure under control, and if they stop taking antihypertensive drugs, their blood pressure will rise again. Hypertension is a chronic disease that is not only slow to develop but also slow to treat. Hypertension has a series of complications, such as abnormal kidney function, kidney failure, coronary heart disease, cerebral hemorrhage, cerebral infarction, and most of these complications are also slow in process.