What does urine protein +-mean?

Urine protein +-refers to weak positive for protein in urine.

Urine protein belongs to a laboratory index of urine routine, which can be used to diagnose a variety of kidney diseases, such as acute and chronic nephritis, nephrotic syndrome, interstitial nephritis, etc. Under normal circumstances, human urine contains almost no or only a small amount of protein, which can be negative (-) when examined. If the test result shows urine protein +-, it means weak positive, which may be due to some physiological factors, such as strenuous exercise, mental stress or excessive fatigue, but it may also be an early manifestation of acute and chronic nephritis, nephrotic syndrome and other diseases.