The high white blood cells in children’s urine tests are usually seen in the following cases: firstly, it is more common to see infections in the external urethra, which are mainly seen in boys who are circumcised and have a prepuce, while in girls, compared to boys, external urethritis is more common because the urethra of girls is short and easily infected. The second thing to consider is that the child may have a urinary tract infection, such as cystitis, which is usually seen in children with poor resistance, relatively serious infections, and relatively long periods of time. Third, we should pay attention to whether the child has kidney problems, such as glomerulonephritis, nephrotic syndrome, or has a kidney tumor and other pathologies that are prone to secondary infection and cause an increase in urine test leukocytes. Regardless of the condition, elevated urine test leukocytes should be seen in a pediatric kidney specialist clinic for further evaluation, examination, and treatment.