Urinalysis protein (+) suggests the presence of proteinuria, and further quantitative urine protein testing is recommended. Possible reasons: first, the occurrence of bacterial infection, which can cause the renal tubules to reduce the reabsorption of protein, there will be protein (+) in the urine. Usually quantitative urine protein test, 24h urine protein amount is less than 1g, is not a disease that occurs in the kidneys, or because of the infection caused by renal tubular reabsorption obstacles, through anti-infective treatment of inflammation after complete healing, can be restored to normal. Second, incidental proteinuria, patients may have pus in the urine or high protein diet, resulting in a transient increase in urinary protein. After review, the protein in the urine (+) can disappear, quantitative urine protein test, often detect a trace of proteinuria, usually not more than 24 hours greater than 1g, generally no special treatment, drink more water, maintain a certain amount of urine can be.