Urine protein is not a basis for confirming a diagnosis of glomerulonephritis. Urine protein is not necessarily glomerulonephritis. Urine protein is divided into physiologic proteinuria and pathologic proteinuria. Physiological proteinuria generally does not require treatment, regular review can be improved; pathologic proteinuria is not only seen in glomerulonephritis, other such as urinary tract infections, urinary stones, etc. can be manifested as positive urine protein. Physiologic proteinuria is due to overwork, excessive exercise, high protein diet, cold and fever and other factors lead to proteinuria. This kind of proteinuria does not need to be treated, as long as pay attention to rest, usually slowly return to normal. If the proteinuria is pathologic, it can be seen in glomerulonephritis, nephrotic syndrome, urinary tract infections, urinary stones and other diseases, and need to further improve the 24-hour urine protein quantification, urinary ultrasound, renal function, urine routine, urine culture and other auxiliary tests to assist in the diagnosis. In general, patients with glomerulonephritis, in addition to positive proteinuria, may be accompanied by hematuria, edema, hypertension, blood creatinine elevation and other manifestations, if the patient combined with the above symptoms, the general high degree of suspicion of glomerulonephritis may be necessary to improve the renal puncture biopsy, definitive diagnosis of the treatment. Therefore, after the discovery of proteinuria, you need to go to the nephrology clinic of regular hospitals to make a clear diagnosis and follow the doctor’s instructions for treatment.