You can drink water before the urine test. There are no special requirements for drinking water, but the urine test recommends that you should pay attention to several points: First, male patients should turn the foreskin over, clean the foreskin, glans and the urethral orifice, and retain the middle section of urine. Female patients should clean the perineum, turn the labia majora over and retain the middle urine. This is the first 10-20 ml of urine, and then the middle part of the urine, so that the specimen is accurate and reliable, and the results of the examination are valuable. Secondly, it is recommended that patients should send their urine for testing within 5-10 minutes after retention, and the results will generally be available in about 20 minutes after sending the test. The urine test can determine whether there is infection, bleeding, etc.