There will not be no urine immediately after hemodialysis. Patients with end-stage renal failure need renal replacement therapy, which includes hemodialysis and peritoneal dialysis, through which metabolic wastes such as urea, creatinine, guanidine and so on can be eliminated from the body to reduce the level of blood creatinine and urea nitrogen. With the prolongation of dialysis time, dialysis patients will experience a gradual decrease in urine output or even anuria. However, some patients with well-protected residual renal function will not experience a significant decrease in urine output, and they can excrete water completely from the body without anuria. Therefore, whether dialysis patients will become anuric or not in the future has a lot to do with how well the patient’s residual renal function is protected. If the patient’s residual renal function is well protected, the urine output will not be significantly reduced. If the patient’s residual renal function is poor, anuria will occur after long-term dialysis. Therefore, whether the patient will have anuria after dialysis should be judged according to the patient’s condition.