The urine test during the physiological period will definitely have a great impact on the test results and will not be accurate. During the physiological period because of the elimination of menstruation, it is not possible to effectively clean the perineum as well as the urethra at this time, and it is likely that the urine tested will have menstruation in it, and in this case there will be many red cells in the urine. Since there is also a lot of dirt in the perineum during the physiological period, it is possible that there are white blood cells in the test, which does not mean that the test result is the true meaning of the urine. Therefore, the physiological period urine test, the test results are not particularly good credibility. It is recommended that after the end of the physiological period, then the urine is tested, the perineum is cleaned, and the middle urine is retained, so that the results of the test represent the true level.