Kidney cancer cannot be equated with uremia. Kidney cancer is a malignant tumor of the kidney. Its treatment can be through surgery, radiotherapy, chemotherapy, and so on. Uremia, on the other hand, is the end-stage development of various kidney diseases. It is a clinical syndrome characterized by the loss of most or all kidney function, leading to sodium and water retention, various electrolyte disorders, and the accumulation of toxins such as urea nitrogen and creatinine. The treatment of uremia relies on hemodialysis, peritoneal dialysis, or kidney transplantation. Although kidney cancer is not uremia, severe kidney cancer can also develop into uremia. At that time, blood replacement therapy is also needed.