Renal Failure is when your kidneys no longer have enough kidney function to maintain a normal state of health. There are two kinds of kidney failure, which is also called renal failure, is when the kidneys slow down or stop properly filtering wastes from the body, which can cause buildups of waste products and toxic substances in the blood. Kidney failure can be acute (sudden) or chronic (occurring over time and usually long lasting or permanent).   http://www.yumeiid.com/