Clinical common AK i.e. acute kidney injury, or CKD i.e. chronic kidney insufficiency, chronic kidney disease, requiring dialysis. And dialysis is needed when entering uremic stage, such as creatinine > 707 μmol/L, the presence of hyperkalemia, severe metabolic acidosis, or the presence of severe edema, heart failure, etc., which can not be achieved by ordinary diuretic treatment. Dialysis is related to kidney function, for example, the function of kidney is to excrete water, metabolites, regulate acid-base balance in the body, regulate electrolyte balance, and part of endocrine function. The so-called dialysis is actually called renal replacement therapy, and there are several ways, such as hemodialysis, peritoneal dialysis, and kidney transplantation. In fact, all of them are exchanging through different ways to make the body excrete excess water, metabolic wastes that can not be excreted, or potassium, acidic metabolites and so on. There are two clinical ways, for example, hemodialysis, through the dialysis machine will lead the blood out of the body, to achieve the purpose of removal. Peritoneal dialysis is performed by surgically placing a tube into the abdominal cavity and filling it with dialysis fluid to drain it through a drainage tube to achieve the purpose of dialysis. Dialysis is the main form of treatment for end-stage renal disease.