Urinary tract infections (UTIs) are common in kids. By age 5, about 8% of girls and 1%-2% of boys have had at least one UTI. They occur when the kidneys, ureters, bladder, or urethra become infected. Symptoms of a UTI can include: pain when urinatingchanges in frequency, appearance, or smell of urinefeverchillsloss of appetitenauseavomitinglower abdominal painlower back pain or discomfort UTIs can also cause bedwetting in kids who were previo