I'm at a loss. My 41/2 year old is still having small accidents. He wets his underwear daily and has been using the potty for over a year. When we ask him if he needs to go, he always says no and doesn't usually tell us when he does have to go, but sometime during the day he will dampen his underwear and will go all day without telling anyone they are wet. When we make him use the potty he will always pee. He doesn't drink nearly enough during the day so I know that's not the problem. We have had him tested for a UTI which was negative. He probably needs some type of chart but not sure how that would work when he doesn't tell anyone he is wet, won't let anyone in the bathroom with him, won't tell us when he has to use the potty, etc Any advice would be appreciated. He is in preschool 3 days a week and they are pretty much hands off when it comes to helping kids in the bathroom.