When You Wank What Happens After Orgasim After I Have A **** I Have A Strong Urge To Pee.?

After I have a **** I have a strong urge to pee.? - when you wank what happens after orgasim

Whenever I have a **** is good, then once I have a strong urge to urinate. It's like a bladder infection provisional takes about an hour. The possible reasons for this happening?