Etiology classification by type of hypertension

According to cause types, hypertension can be divided into primary hypertension and secondary hypertension. In patients with hypertension about 90 percent for essential hypertension, about 10 percent of secondary hypertension.
(1) essential hypertension: Hypertension, the pathogenesis of many theories, but the real cause is not yet fully explained, in clinical arterial blood pressure increased as the main performance.
(2) secondary hypertension: is secondary to a disease or a particular reason after a certain increase in blood pressure, the application of modern medical technology can find its etiology, most of which can be treated by surgical removal, and other diseases thus its hypertension been cured. For example, secondary to acute and chronic glomerulonephritis, such as renal artery stenosis kidney disease after renal hypertension, secondary to pheochromocytoma, and other endocrine diseases of the endocrine after hypertension, secondary to brain tumors and other diseases after nerve iatrogenic high blood pressure, blood flow and mechanical obstacles hypertension, iatrogenic hypertension, pregnancy-induced hypertension and other causes of hypertension.