Urine protein (+) is an indication of protein in urine, which is a qualitative judgment, not a quantitative judgment. Generally, in nephrology, if a patient has urine protein, in addition to checking other indicators, quantitative tests will be done, such as 24-hour urine protein quantification, which can determine the severity of the problem. Urine protein (+) is not particularly serious, for example, some people stay up late, tired or postural, it may also appear, so you need to recheck several times to see if the urine protein has disappeared. Patients can adjust their physical state, such as pay attention to rest, do not exercise too much, drink less, and also rule out any other diseases, such as hypertension, diabetes and other diseases related to the kidneys. Therefore, if there is protein in the urine, it is still recommended to go to a nephrologist for a checkup to determine the level or extent of urine protein and to assess the kidney function, because a positive urine protein may reveal potential problems in the body.