There is no comparison between dialysis and chemotherapy. If you have a tumor and your kidneys are not functioning well, you can’t have chemotherapy directly because most of the chemotherapy drugs are excreted through the kidneys and the use of chemotherapy drugs can further damage the kidneys. At this time, we can first use dialysis to make the urea nitrogen and creatinine index decrease, and then carry out chemotherapy after the kidney function improves, and we should monitor the kidney function closely after chemotherapy. Try to carry out chemotherapy without damaging the kidney function so that the patient can get the maximum benefit. The tumor shrinks through chemotherapy, but it also seriously damages the kidney function and shortens the patient’s survival life, which is undesirable and more than pays for itself.