A urinary tract infection (UTI) is an infection caused by bacteria (germs) getting into the urinary tract. The urinary tract is a term for those parts of the body involved in making and passing urine, which include the kidneys, bladder, ureters (tubes which connect the kidneys and bladder) and the urethra (tube through which the urine exits the body).
Urinary tract infections in children are fairly common and can affect the lower tract (bladder) or the upper tract (kidney). By 5 years old, about 8% of girls and 1-2% of boys have had at least one UTI.




