If the urine routine examination only finds a slight increase in urine protein, such as suspicious urine protein or only a plus sign, it is usually caused by physiological reasons, such as intense exercise, staying up late, drinking, and fever before the examination, which can cause this phenomenon. Generally, no special treatment is required for this situation. If there is more urinary protein, three or even four additions are needed to consider kidney diseases, such as glomerulonephritis, pyelonephritis, nephrotic syndrome, purpura nephritis, diabetes, kidney disease, etc., which will cause a significant increase in urinary protein.
