Dialysis is also known as artificial kidney and it can remove wastes and excess fluid from blood. It is normal to want to put of dialysis forever. However, high levels of toxic wastes in body can be life-threatening. Generally, you are recommended to start Dialysis when your kidney function drops to 15% or less. However, if you have severe symptoms caused by kidney disease, such as shortness of breath, fatigue, muscle cramps, nausea or vomiting, you have to start dialysis earlier. On the contrary, if you do not have symptoms, you can delay the dialysis treatment. Some doctors believe that it is a wise choice to start dialysis earlier since it takes a long time for you to recover if you become very ill.Your doctor will help you decide when to start dialysis, based on results of lab tests that measure how much kidney function you have left and on your symptoms. So it is important for you to go to see a nephrologist periodically.