The increase of residual urine in the bladder needs to be determined according to the specific amount of residual urine to decide how to deal with, first, if the prostate disease caused by residual urine in the bladder is greater than 50mL or more, belongs to the surgical treatment of prostatic hyperplasia is an indication, it is recommended that the patient is hospitalized in the prostate surgical treatment to relieve the obstruction caused by the prostate gland, to restore urethral patency, the residual urine can be restored to the normal condition. Second, if the residual urine is more than 100mL, it is recommended to temporarily give the indwelling urinary catheter treatment, for the cause of residual urine to further treatment, such as urethral stenosis caused by the urethral dilatation treatment is recommended; neurogenic bladder caused by the recommendation of a long-term indwelling catheter or suprapubic vesicourethrocystostomy, retention of fistula tube to carry on the continuous drainage. Third, secondary to pelvic floor surgery, such as women’s uterine surgery, or men’s rectal surgery after the increase in residual urine, it is recommended to leave the catheter during the pelvic floor biofeedback therapy, or pelvic floor muscle exercise therapy, the catheter is removed at an appropriate time, and then regular review of the residual urine situation.