With the gradual increase in blood pressure, especially in patients with persistently high hypertension, there is often ensuing organ damage. In clinical practice, we constantly emphasize to our patients the importance of controlling blood pressure in the normal range, suggesting that they take antihypertensive medications regularly for a long time and monitor their blood pressure regularly, as this is the only way to minimize the harm caused by hypertension. Today we talk about what are the dangers of hypertension? High blood pressure will trigger the heart pressure, increased load, thus inducing angina attack at the same time, blood pressure increases, itself will accelerate the progress of atherosclerosis, hypertension is an independent risk factor for coronary heart disease. Therefore, for patients with hypertension when the blood pressure is less than 150 mm Hg systolic and 90 mm Hg diastolic, a combination of aspirin is needed to help fight atherosclerosis and prevent the progression of coronary heart disease. Chronic high blood pressure may also induce cerebral infarction, or cerebral hemorrhage, especially in patients with type H hypertension. That is, hypertension with hyperhomocysteinemia. Patients with this type of hypertension are more likely to have strokes. In the early stages of hypertension, proteinuria may be induced, but if not taken seriously enough and blood pressure remains poorly controlled, it can gradually develop into renal insufficiency or even uremia, which needs to be maintained in combination with hemodialysis. In the state of hypertension, patients may have nose bleeding, bleeding from the fundus of the eyes, and in some cases, fundus lesions, which can eventually lead to blindness. Patients who develop hypertensive heart disease may gradually develop heart failure. Hypertension is one of the most common cardiovascular diseases and is positively correlated with age and weight. The damage can often involve several organs, while causing irreversible damage. Only by paying more attention to blood pressure, lifestyle and dietary modification can we better reduce or avoid complications and damage to target organs.