If the urine does not come out, an indwelling urinary catheter should be given urgently to drain the urine, and then the cause of the inability to pass urine should be determined by clinical examination. If the problem is caused by a neurogenic bladder, the urine can be drained through long-term indwelling catheterization or cystostomy. It can also be treated by clean catheterization to improve the condition of having urine that does not come out, or by sacral nerve surgery to solve the condition of having urine that does not come out. If an older man is unable to urinate due to prostate enlargement, he can be treated with prostate enlargement surgery. If a man is unable to urinate due to urethral stricture, he can be treated with urethral anastomosis or urethral dilation surgery to resolve the symptoms.