Poor kidney can cause blood pressure to rise, hypertension is divided into primary hypertension and secondary hypertension, of which renal hypertension accounts for a large proportion of the causes of secondary hypertension. Renal hypertension is mainly caused by renal parenchymal lesions and renal artery lesions that increase blood pressure. Renal substantive hypertension is mainly caused by various acute and chronic glomerulonephritis, diabetic nephropathy, chronic pyelonephritis, polycystic kidney and other renal substantive diseases, which are subdivided into nephritis hypertension, nephropathy hypertension, and hypertension due to renal failure. The other is renal vascular hypertension, mainly caused by aortitis or congenital renal artery fibromuscular dysplasia, renal arteriosclerosis and other causes, resulting in renal parenchymal ischemia caused by narrowing of the main trunk of the renal artery or its major branches, which activates the renin angiotensin aldosterone system and produces secondary hypertension.