I have had one of these recently.
They numb the urethra so no problem really. Very quick and you can see everything on camera if you like!
The antibiotic jab in my thigh was more painful when I tried to get of off the op table - leg went numb! No problem afterwards though

15 minute procedure.... Drove straight home afterwards (they do make sure that you have had a pee first though !) ........
Rebecca