The day before the routine urine test, you should avoid using gynecological drugs in the pubic area so as not to affect the results of the test the next day. Generally speaking, patients can pass the routine urine examination, so as to clarify whether there is an infection, but the urine specimen should be kept clean, to avoid being contaminated, resulting in errors in the results. The day before the urine test, you should eat a light diet, to develop a good routine, you need to go to bed early and get up early, avoid staying up late for a long time. Not only that, the day before the test to avoid the pubic put drugs, so as not to drug residues affect the results of the urine test. Urine routine examination, try to choose the first urine in the morning, also known as morning urine, you can stay clean mid-range urine, and after the collection of urine, need to be sent to the test within half an hour, to avoid the urine shelved for too long, so that the specimen contamination, affecting the results of the examination. The specific situation is recommended to consult a professional doctor.