How many uses of a urinary catheter can you think of?

Urinary catheters are versatile things, that can be useful in a variety of situations.
How many uses of a urinary catheter can you think of (medical only please, not recreational)?
We have thought of 6, but reckon there are more so we need your help to expand the list.
Please comment if you can think of a use.

To start the ball rolling here is one use - it can be used to drain urine from the bladder!

Share your thoughts