Dialysis fluid is divided into hemodialysis fluid and peritoneal dialysis fluid. Hemodialysis fluid is divided into fluid A and fluid B. Fluid A contains mainly potassium, sodium, calcium and magnesium, while fluid B contains bicarbonate. The only difference between peritoneal dialysis fluid and hemodialysis fluid is that it does not contain blood potassium, it contains sodium, chloride, calcium, magnesium, sodium lactate and glucose, and peritoneal dialysis fluid uses glucose as an osmotic agent. Dialysis solution is a type of solution containing a variety of ionic and non-ionic substances with a certain osmotic pressure, which can regulate water and salt, electrolyte, acid-base balance, and is used for intraperitoneal dialysis, extracorporeal dialysis and rectal dialysis. Its effect is mainly to discharge metabolic wastes from the body, to discharge toxic substances and excessive drugs from the body, and to regulate the acid-base balance of body fluid water and electrolytes. It is mainly used clinically for acute renal failure, chronic renal failure, treatment of acute drug and toxin poisoning, intractable heart failure, intractable edema, electrolyte disorders and acid-base imbalance.