Patients with hypertension who have poorly controlled blood pressure may develop complications in 5-10 years. Complications are mainly related to abnormalities in blood vessels and the resulting abnormalities in organ function. Small vessel lesions, such as abnormalities of the kidneys as well as the retinal arteries, may lead to things like retinopathy and renal insufficiency. In terms of the effect on the cerebral arteries, it may mainly lead to cerebral hemorrhage and cerebral infarction. Long-term poor blood pressure control increases the load on the heart, which can easily lead to cardiac hypertrophy and eventually heart failure, and the macrovascular lesions promoted by hypertension can lead to coronary heart disease. Some people with long-term poor blood pressure control have increased long-term pressure on the large arteries, which may lead to aortic coarctation at a later stage, etc. Patients must pay attention to this.