Elevated urine leukocytes are not necessarily a urinary tract infection, but in the vast majority of cases they are, and in rare cases they may not be combined with a urinary tract infection, but are caused by contamination of the urine specimen during the retention process, resulting in an elevated leukocyte count. This is not an infection in the patient’s body, so there are no conscious symptoms. For example, in men, bacterial contamination of the foreskin during urine collection can cause an increase in urine leukocyte count. If the urine specimen is left for more than 2 hours, bacterial growth and decay may occur, and then the test may show an increase in the white blood cell count. Therefore, if the patient has symptoms of urinary tract irritation, consider the infection, but if the patient does not have any conscious symptoms, it is recommended that the patient retrieve a urine specimen for review or directly perform a urine culture test to determine whether there is pathogenic bacteria growth and determine the presence of infection.