Are there any formal alternative expressions for "hold the urine"?

Is there any similar and formal expressions to say "hold the urine"?

I'd like to know some formal expression to say "hold the urine".

Solution 1:

There are no direct way to say "hold the urine", like there're no direct way to say "pee".

Almost everytime, you don't explicitly say: I hold the pee/poo.

However, you can use "I really need to go to the toilet", that's formal.

Solution 2:

There are ways to say "hold your urine" where I come from. If someone says "I have to urinate," you can answer:

"Cross your legs and think about the desert." (Good for mixed company.)

"Tie a knot in it." (To a man.)

"Don't break the seal." (Common among beer drinkers.)

"Just keep dancing." (General use.) (US)