Urinary tract infection may occur urine protein (++), this situation is not the patient’s kidney occurred related damage, and protein urine, but due to the infection after the renal tubular absorption of protein reduced, urine protein content increased, while the presence of bacteria or mucin in the urine, etc., resulting in protein content increased. This kind of protein is not affected by protein leakage from the body, but exogenous protein. Therefore, it is recommended to actively control the infection and review it after the infection is cured, generally the urine protein can be restored to normal after the infection is controlled, but at the same time, it should be distinguished from nephrogenic proteinuria, and 24h urine protein can be retained for quantitative testing. If it is within the normal range, no treatment is needed for the time being, only anti-infection treatment is required. If urine protein is still present after the infection is completely cured, specialist treatment such as protein quantification, renal function tests, and even kidney puncture biopsy if necessary, is required in nephrology.