What is post micturation residue?

Answer 1

You may be thinking of post micturation residual urine. This is what it is called in medical terminology when someone is unable to completely empty their urinary bladder when they urinate. There can be urine still left in the bladder that can't be emptied for different reasons (prostate enlargement in men, bladder weakness from childbirth in women, etc.). The amount of "residual" (left over) urine in the bladder is measured to see how big the problem may be. If allowed to sit and not be emptied, this residual urine can cause chronic infections and other urinary system problems.

Measuring the retained urine can be done by using a tube (catheter) to drain the urine from the bladder and then measure the amount, or it can be done by using a nifty non-invasive hand-held ultrasonic bladder scanner that can measure urinary retention from the outside.

These measurements of the residual urine are also used when a person has needed a urinary catheter for a while during an illness, injury, or after surgery but now has had it removed, so that it can be checked to be sure that the bladder is fully functioning again and ready and able to empty itself. The catheter may need to be put back in place for a while if there is still too much "residual".

This is also called "Post-void residual urine". Voiding and micturating are words that both mean "urinating."

If the question is about a residue left in the bladder after urinating, then that could be referencing kidney or bladder stones, sludge in the bladder from an infection, or other matter left in the bladder that could not be eliminated or passed. But that is not usually referred to as "post micturation residue", more likely it would be called "debris" in the bladder or the actual name of the particular "residue/matter" such as bladder stones (cystoliths), or other medical terms for the specific condition.