I have to use a catheter to empty that residual urine every time I go.

A volume of greater than 50 ml in children has been described as constituting post-void residual urine.

Urinary bladder stones are formed from the crystallization of salts in the residual urine.

Residual urine determination.

A test often performed is the measurement of bladder capacity and residual urine for evidence of poorly functioning bladder muscles.

A post-void residual urine greater than 50 ml is a significant amount of urine and increases the potential for recurring urinary tract infections.

Post-void residual urine test (PVR) measures the amount of urine left in the bladder after urination.

In adults older than 60 years, 50-100 ml of residual urine may remain after each voiding because of the decreased contractility of the detrusor muscle.

In all three types the bladder contracts, but the contractions are generally not sufficient to empty the viscus completely, and residual urine is left in the bladder.

Another way to test postvoid residual urine is with an ultrasound, which uses sound waves to look at how much urine is left in your bladder after you go.

Urinary flow, micturition time, residual urine, frequency of micturition and a subjective assessment of the effect of treatment were all significantly improved in the treatment group."

This fluid helps to lubricate the urethra for spermatozoa to pass through, neutralizing traces of acidic urine in the urethra, and helps flush out any residual urine or foreign matter.

The principles of using intermittent catheterisation are based on regular and complete emptying of the bladder to maintain a low bladder pressure and minimal residual urine volumes, consequently securing bladder and renal health.

Also residual urine can be estimated in a poorly emptying bladder Cystoscopy: A thin tube with a tiny camera is placed inside the urethra to view the inside of the urethra and bladder to look for abnormalities.

It has been suggested that their urological dysfunction may be a marker of perinatal neurological damage, but in a study of 191 wetters those with dyssynergic bladders and increased residual urine were also those with the most severe behavioural problems.