Some young children suddenly develop the habit of frequent daytime urination. They urinate every 10 to 30 minutes and as often as 20 times a day. They pass small amounts of urine each time. The urination is not painful. These children have been toilet trained and do not wet themselves during the day. They do not drink excessive amounts of fluid. The problem disappears when they are asleep. The peak age for daytime urinary frequency is 4 or 5 years, but it can occur as late as 12 years of age.
Frequent urination may reflect the spilling over of emotional tension or excitement. The symptom is not deliberate. Sometimes it begins within one or two days of a “stressful” event such as a death or illness in the family, a move to a new house, or the start of kindergarten. It might be seen with a change in seasons or something exciting like a birthday or vacation.