The kidney acts like a filter and removes the toxins like urea, creatinine from the blood in the form of urine. When the kidney is paralyzed to perform this function, Chronic Renal failure occurs. It is also known as Chronic Kidney disease(CKD). It is divided into 5 stages (stage 1 or early to advanced stage 5) depending on the severity of kidney injury. Toxins and water build up in the body gradually on regular basis. CKD cannot be reversed or cured, but if diagnosed early can be controlled well from progressing to advance stages. In initial stages he or she can be maintained with medications alone.

Hemodialysis is the process of filtering blood through a dialysis machine and removing accumulated toxins and extra water from the body ie When the natural machines of the body- kidneys fails, then artificial machines are used to clean the blood and body. HD may be requires in few cases of acute renal failure where the dialysis is temporary and patient is taken off hemodialysis once his kidney function improves.

When the kidneys fail to function properly, it leads to kidney diseases as well as kidney failure. Diabetes and hypertension are two major reasons for kidney diseases all over the world. The research says that nearly 44 percent of the kidney failure is due to diabetes. You might have controlled your diabetes, yet there are high chances of CKD and kidney failures. It takes years to reach to the stage of kidney failure. Microalbuminuria is the earliest abnormality to oocur in urine before there are abnormalities in blood chemistry.