Urine protein 1+ is not serious if it is caused by physiological factors. If it is caused by pathological factors is more serious. Urine protein 1+ indicates a small amount of proteinuria, if it is physiological factors lead to transient proteinuria, is not serious, such as: fever, strenuous exercise, etc., usually do not need to carry out special treatment, triggers lifted, usually can be automatically recovered. If it is caused by pathological factors, usually related to kidney-related diseases, common causes such as urinary tract infections, urinary stones, urinary tract tumors, glomerulonephritis, diabetic nephropathy, etc., relatively serious, and need to target treatment for specific causes. Urine protein 1 + many reasons, it is recommended that the patient in time to regular hospitals, under the guidance of the physician standardized examination and treatment.