High blood pressure may be associated with primary hypertension, secondary hypertension and other factors. The dangers of hypertension include cardiovascular and cerebrovascular lesions and so on. The main cause of primary hypertension is heredity; secondary hypertension is related to kidney disease, endocrine disease and other factors. 1. Genetic factors: among the causes of elevated blood pressure, the influence of genetic inheritance is the most important, and patients with onset of the disease mostly have family history. 2. Kidney diseases: Kidney diseases, such as inflammation and tumor, will lead to physiological dysfunction of the kidney and sodium retention in the body, resulting in increased blood volume and higher blood pressure. 3. Endocrine diseases: thyroid hormone secretion increases in patients with hyperthyroidism and cortisolism, which will cause metabolic disorders in the body and lead to increased blood pressure. High blood pressure can lead to cerebral hemorrhage, cerebral thrombosis, heart failure, coronary heart disease, aortic coarctation and other cardiovascular and cerebral vascular pathologies. If you find elevated blood pressure, you should consult a doctor promptly and strictly follow the doctor’s instructions for treatment.