The urine tests for women are the routine urine test and the early pregnancy test. It is not acceptable to perform a urine test during menstruation because the patient will receive blood from the vagina along with the urine and the test results will show that the number of red blood cells in the urine will be higher. Patients may have an increase in red blood cells during urine tests three days before and three days after menstruation, mainly because during this phase, the endometrium will have a small amount of exfoliated bleeding that is not easily detected by the patient. Therefore, it is recommended that patients should avoid checking urine at this time, and it is necessary to take middle urine when checking urine, so that the results of the test will be more accurate. If there is a change in the volume of menstruation, the volume is low and abdominal pain appears you need to check the urine routine and early pregnancy test paper test to determine the condition, which can be done anytime in this case, and after getting the test results the doctor can analyze it comprehensively according to the results. The presence of positive early pregnancy test paper does not exclude the possibility of pregnancy, although the examination during bleeding is affected, but the error rate is not large. The presence of white blood cells in the urine is considered the most likely urinary tract infection, the menstrual period has little effect on the white blood cells, mainly because it is impossible to judge the severity. So you need to actively treat three days and then recheck the urine routine examination. Usually try not to choose the menstrual period to avoid errors in the examination, and communicate with the doctor in a timely manner in special cases to avoid misjudging the results.