Most of the symptoms of uremic patients can be relieved after dialysis treatment, but it is impossible to restore the kidney function to normal, because dialysis is a partial replacement of kidney function, excreting toxins and water, mediating part of acid-base imbalance and ion imbalance, but it is impossible to reach the endocrine function of the kidney itself, which cannot be replaced by dialysis. The kidney itself secretes erythropoietin, regulates calcium and phosphorus, regulates blood pressure and other endocrine functions, and this part of function can only be achieved when the kidney transplant patient has fully restored the function of the kidney. Therefore, dialysis for uremic patients is to help patients relieve some of their symptoms and improve their quality of life, and it cannot reach the level of cure.