In the older kids, the symptoms are generally clear. The main symptoms include pain in the lower belly, the back, or the side and an urgency to pee or pee much often. Some kids that have already been toilet trained tend to lose their control over their bladder and might wet the bed. You might even see some drops of blood in their urine, and/or the urine is pink in colour.With the younger children, you may need to do a little digging and find out what is wrong. Infants might have more general symptoms, such as fussiness, little or no interest in the food, or a fever.The other UTI symptoms in kids include the following:FeverBurning or pain when the child peesAn urgency to go, and then just peeing a few dropsFoul-smelling or cloudy looking peeNausea and/or vomitingDiarrhoea