If you have an experience of failure about pee such as you were scolded too much because you wet your pants in your childhood, or you stopped the bus on the trip because you wanted to pee, the desire to urinate is overstimulated. That makes you want to pee even if urine is stored only a little in the bladder. It is called Nervous Pollakiuria (Bladder Neurosis).
How to treat Nervous Pollakiuria
Since originally there is no dysfunction of the bladder, hold the pee for 5 minutes then 10 minutes even if you want to pee. That makes the expansion of the bladder better and you will have confidence, leading to normal desire of urination.