Urine protein weak positive drink more water for physiological proteinuria such as strenuous exercise, is generally useful; but for pathological proteinuria, such as nephritis, diabetic nephropathy, hypertensive nephropathy, etc., is not useful, but may cover up the condition, resulting in misdiagnosis. Urine protein is weakly positive, seen in physiological conditions and pathological conditions, if it is physiological conditions, such as strenuous exercise, eating a lot of meat, nutcracker syndrome, etc., drink more water may dilute the urine, resulting in urinary protein turn negative. Drinking more water may be useful at this time. But for pathological conditions, such as nephritis, diabetic nephropathy, hypertensive nephropathy, etc., this situation by drinking more water, it does not work, only can dilute the urine, may lead to a single examination of urine routine occurs in the urine protein reduction, there may be a cover-up of the condition. However, for 24-hour urine protein quantification is usually no significant change. For urine protein weak positive, it is recommended that the patient is necessary to actively go to the regular hospital to receive further examination, such as the need to check the renal function, renal ultrasound and 24-hour urine protein quantitative and so on to assess the severity of the condition. It is recommended that patients with weakly positive urine protein, regular hospitals, under the guidance of a specialist to actively treat, to avoid affecting the health of the body.