It might not feel like it, but the adult bladder can hold as much as half a litre (2 cups) of pee before you'll feel the need to 'go'. Your body knows.
Certain people just need to pee more frequently than others. . they simply cannot hold as much urine as people who have a larger bladder,”.
4 Things That Could Happen When You Hold In Your Pee for Too Long That feeling you get after you've been holding it forever and finally go.