It is possible to have breakfast for the routine urine test. In principle, it is recommended to keep the first urine in the morning and not to drink a lot of water before the routine urine test. A small amount of food will not have any effect on the urine routine examination, but it is recommended for patients who have had abnormal urine routine examination, as far as possible to choose fasting for examination, otherwise it may affect some of the items. For example, diabetic patients may cause an increase in blood sugar after eating, at this time for urine routine examination may cause increased sugar content in the urine, and proteinuric patients if the diet during breakfast more protein, may also lead to inaccurate protein in the urine. For patients who have been in relatively good health, a small amount of food will not have any effect on the urine test, but for patients suffering from diabetes, kidney disease and other internal diseases, it is recommended that it is best to fasting to keep the first urine in the morning to get up for routine examination.