Male leukocytes 3 + means that routine urine examination suggests leukocytes 3 +, relatively not serious, but usually suggests that there is a urinary tract infection that requires treatment. Urine sediment test slide method standard method for 1 drop of urine sediment solution on a slide to observe, cells to high magnification vision HP report, 0 to 5 / HP is normal, > 5 for leukocyte urine. Leukocytes 3+ represents 15 to 20/HP. Elevated leukocytes microscopy is common in acute interstitial nephritis, cystitis, pyelonephritis, renal tuberculosis, etc.. The etiology should be clarified and anti-infection and treatment of the primary disease should be given to normalize the urinary leukocytes. In conclusion, leukocyte 3+, need to identify the cause, standardized treatment.