Q | why do i need this test?

A | The CMG test is part of the investigations for an overactive bladder. The patient may be complaining of symptoms including urgency and frequency.

This test is also useful in patients complaining of urinary leakage or incontinence and will assess how the bladder reacts on filling and emptying.

Men with bladder outflow symptoms sometimes undergo CMG before proceeding with any operations on the prostate.

This is because symptoms due to prostatic enlargement can be due to the prostate itself, the bladder or a combination of the two.