Urine routine is one of the most commonly used tests in urology, which can observe the changes of urine before and during medication, and directly reflect urinary system infection, stone or kidney function, etc. The items included are urine acidity, pH, urine specific gravity, urine bilinogen, occult blood, white blood cells, bacteria, urine protein, urine sugar, bilirubin, ketone bodies, red blood cells, epithelial cells, tubular type, urine color, etc. Urine specimens retained for routine urination need to take the interrupted urine of the first urine in the early morning, to use warm water to wash the vulva, and then eliminate the anterior segment of urine, take the interrupted urine in a clean container, and it should be sent in time to prevent the occurrence of contamination affecting the test results. For special tests, such as urine protein quantification, it is also necessary for the patient to have a low protein diet 3 days prior to urine retrieval to avoid affecting the test results.