Urine protein generally refers to urine protein in the urine routine, the normal value range qualitative examination is negative, quantitative examination is 0~80mg/24h, may vary depending on the machine, specific advice to consult your local doctor. Healthy adults excrete very little protein (about 30~130mg) through urine every day, and the routine qualitative test is usually negative. When the protein concentration is greater than 100mg/L or 150mg/24h urine, urine with a positive qualitative protein test is called proteinuria. The appearance of proteinuria is mainly physiologic and pathologic factors. The common causes of physiologic proteinuria are functional and positional, such as strenuous exercise, fever, change of position, etc., which will improve after removing the cause. Pathological proteinuria is mostly persistent proteinuria, which is mostly seen in renal or extra-renal diseases, such as glomerulonephritis, urinary tract infections, hemolytic anemia, and extrusion syndrome. If the patient’s urine protein is positive, it is recommended to go to the regular hospital in a timely manner, complete the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.