What are the causes of renal atrophy in general ?

First, what is renal atrophy , and how to determine renal atrophy
Renal atrophy and renal volume is based on the person's age , gender and body height and weight compared with each other . Shijiazhuang Kidney Disease Hospital has been advocating the use of B -mode ultrasound examination kidneys , it is the most simple and convenient , and economical. B -mode ultrasound method for measuring the size of the kidney including renal poles diameter and thickness of the renal parenchyma . Kidney diameter according to ethnicity, height, age and there are some differences , the left kidney slightly longer than the right kidney , males slightly larger than females. China's population according to the survey , the adult kidney diameter is approximately 10 ~ 12cm, width 5 ~ 6cm; kidney volume older age increments narrowed investigation found that elderly kidney diameter of 9.2-11.8cm, less than 9.2cm kidney atrophy , greater than 11.8cm kidney increases.
Adult renal parenchymal thickness of about 1.5 ~ 2cm, no significant differences in the elderly , <1.5cm to narrow ,> 2.0cm is thickened. Generally diameter plus kidney renal parenchymal thickness measurements to identify acute and chronic renal failure , in line with rate of 92.6%. Suffering from chronic kidney disease , kidney size measured regularly , can help monitor disease progression .
Second, a clear understanding of "what is renal atrophy ," analysis " to generate renal atrophy reason ."
Left kidney renal atrophy usually occur atrophy, atrophy of the right kidney and renal atrophy symptoms. Generally caused by renal atrophy following reasons :
First to be considered that renal atrophy congenital renal hypoplasia , followed by consideration of end-stage renal disease, ie renal failure, uremia , or some acute illness. Such as: acute renal disease, diabetes, renal cirrhosis , kidney transplant rejection , chronic glomerulonephritis, renal cortical necrosis , Alport syndrome, acute tubular necrosis , hypertensive nephrosclerosis .
Bilateral renal or kidney narrow side more than the cause of chronic pyelonephritis , which is also a common cause of renal atrophy .
Generally the development of chronic kidney disease kidneys shrink to renal insufficiency, especially renal failure, uremia , serum creatinine, blood urea nitrogen increased, severe kidney damage, renal parenchymal injury , kidney will be reduced . So be sure to remind patients of renal atrophy great attention to this , a strong occult renal disease , if the glomerular filtration rate below 50 %, that is a serious clinical symptoms of kidney damage was consequential . Renal atrophy after diagnosis must actively find reasons to troubleshoot the condition.
In addition, there are two reasons for renal atrophy : renal tuberculosis ( unilateral renal narrow , with contralateral hydronephrosis or compensatory increase ) , renal artery stenosis and congenital hypoplasia.

Conclusion : In general, renal atrophy and prolonged kidney disease are closely related, because the kidney diseases lead to renal units , especially in glomerular damage, the entire kidney appeared smaller in size . Renal atrophy and renal function are complementary, when patients with renal atrophy when bound to have renal insufficiency or renal failure until - uremia. In the hope of the disease in patients with renal atrophy attention early in time to be a systemic examination to exclude the possibility of renal failure , so as not to delay the disease.