A urine protein test is usually recommended to be performed on an empty stomach so that the effects of diet and exercise can be ruled out. Fasting for urine protein test can get more accurate results, while choosing the mid-range of the first urine in the morning for the test, because after the urine has been precipitated throughout the night, the content of urinary protein is higher, and the detection rate will be increased; if the test is done after a meal or drinking water, resulting in dilution of urine, which will have a certain impact on the detection rate of urinary protein and the results, therefore, urinary protein is recommended to be tested on an empty stomach. Uroprotein is mainly used to detect whether the renal tubules or glomeruli are normal, which is mainly divided into physiological Uroprotein or pathological Uroprotein; physiological Uroprotein usually appears after fever or excessive fatigue; pathological Uroprotein is the occurrence of primary or secondary diseases in the kidneys. Therefore, if the patient appears to have protein in urine, it is recommended to go to the regular hospital in a timely manner, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.