Urine routine protein +- suggests that urine protein weak positive, there may be a small amount of protein in the urine, but also may be caused by test error. Normal people urine routine examination of urine protein is negative, if there is a weak positive may be physiological reasons, pathological reasons, or test error. Physiological reasons are more common in fever, strenuous exercise, cold, emotional stress, etc., when the urine protein is transient, with the improvement of the state of the body, the urine protein will disappear on its own, generally does not affect the health. Pathological causes are more common in primary glomerulonephritis, secondary nephropathy, urinary tract infection, urinary stones and other conditions. In addition to this, small amounts of urinary protein can also occur in tall and thin patients due to the pressure on the left renal vein. False-positive urine protein can also occur if certain medications are applied or if you drink less water. Once the urine protein weak positive, need to consult the nephrology department of the hospital, review the urine routine, if necessary, urine microalbumin creatinine ratio test or do 24-hour urine protein quantitative, clear cause, and comply with the doctor’s instructions for treatment.