The positive urine leukocytes in men often indicate an abnormal increase in leukocytes in urine. Normal men are generally negative for leukocytes in routine urine tests, and when there is an abnormal increase in leukocytes in urine, the test results will indicate a positive result, which often reflects an infectious lesion of the urinary system. The presence of urinary tract infections in male patients is often caused by certain triggers, such as the presence of obstructive diseases or foreign bodies in the urinary tract, which can easily cause bacteria to attach and cause urinary tract infections. Common diseases include prostatic hyperplasia in elderly men, hydronephrosis caused by ureteral stenosis, and urinary tract stones, all of which are common factors that induce urinary tract infections. The common pathogenic bacteria that cause urinary tract infections are mainly gram-staining negative bacilli such as Escherichia coli and Proteus mirabilis, and a few can also be caused by coccidial infections.