Some people tend to hold urine in their bladders for extended periods of time because they do not want to take time to go to the bathroom. This can be a harmful practice too, as it can promote the growth of bacteria and even lead to problems in urinating. For those who have problems with urinary tract infections, urinating every 3-4 hours is better. Girls should wear cotton underpants. Cotton dries easily and allows air passage.
Synthetic materials hold moisture, which encourages bacteria to grow.
Pajama bottoms should be cotton as well. Pants made of spandex material should not be worn. If girls' skin becomes raw and irritated, it is a good idea to allow the bottom to be exposed to air as much as possible. Nighttime is a good time to go without clothes from the waist down. In the summertime, when swimming is common, young girls need to empty their bladders frequently.