The urine test can be performed without the first urination, and the results will not be significantly affected by the retention of random urine, especially when the patient’s symptoms are most serious, and the accuracy of the test results will be higher if the urine is retained at that time, such as when the patient’s pain is most serious, or when the urine bleeding is most serious. The test. Patients should not drink as much water as possible before the urine test, as drinking more water may cause dilution of the urine, and should not drink drinks containing sugar, as drinks with too much sugar can cause abnormally high sugar levels in the urine and affect the test results. There are no dietary requirements for routine urine tests, and fasting is not required. After eating, you can also perform routine urine tests. Retain urine specimens from the middle section of the urine as much as possible, rather than the initial and final sections of urine in a single discharge.