Urinalysis usually means that a specimen of urine is retained for routine urine analysis and bacterial culture examination.1. Routine urine analysis can find out the pH of the urine, the PH value of the urine, whether there is an infection in the urine, whether the white blood cell count is elevated, and whether the bacterial count is elevated. Routine urine examination can also find out whether there are red blood cells in the urine, the specific gravity of the urine, whether the metabolism of bilirubin in the urine is normal, and whether the level of urine sugar is at a normal level.2. Urine culture, which is done by retaining urine for culture examination of bacteria, takes about 24 hours to incubate. It can understand whether there are pathogenic bacteria in the urine, and according to the culture of pathogenic bacteria, further drug sensitivity test can be done to guide the clinical use of the most sensitive antibiotic treatment to accelerate healing.