The residual urine volume of the bladder is less than 5ml under normal circumstances, and the residual urine volume of 33ml belongs to the increase of residual urine volume, the severity of which is related to the insufficiency of voiding function compensation or the degree of obstruction of the lower urinary tract.
There are two main causes of increased bladder residual urine volume, one is the lower urinary tract obstruction caused by poor urine discharge caused by increased residual urine volume, commonly seen in prostate hyperplasia, can also be seen in trauma, inflammation and other causes of urethral stenosis; the other is due to problems with bladder function, resulting in the forced urethritic muscle weakness, causing an increase in the amount of residual urine, most commonly seen in neurological disorders.
For increased residual urine volume, it is important to have a thorough examination and treatment under the guidance of a professional doctor.