Weak positive urine protein qualitative is not necessarily a recurrence of nephrotic syndrome. Under normal circumstances, the human body 24-hour urine protein quantitative <150mg, when the 24-hour urine protein in 0.15-0.5g, urine protein usually suggests weak positive. Weak positive urine protein can be seen in physiological conditions, but also may be caused by renal disease including nephrotic syndrome recurrence and other pathological factors. When strenuous exercise, fever and other conditions, a small amount of urine protein may appear, the test suggests that the urine protein is weakly positive. After giving symptomatic treatment can generally return to normal. Of course, it may also be caused by renal disease, including nephrotic syndrome recurrence, it is recommended to further improve the 24-hour urine protein quantification, urine protein electrophoresis, renal function and other tests to clarify the condition. When urine protein is weakly positive, it should be taken seriously, and it is recommended to go to the hospital to find out the cause and actively treat under the guidance of physicians.