What does the third trimester urine protein +-mean?

Urine protein +-indicates that urine protein content slightly exceeds the normal range during urine examination in the third trimester of pregnancy.

Urine protein refers to urine containing more protein. Under normal circumstances, urine should contain no protein or only trace protein. Urine protein can appear when kidney filtration function is impaired or protein leaks into urine. In the third trimester, pregnant women's kidney burden will increase, which may lead to impaired kidney filtration function, thus making urine protein content slightly exceed the normal range. Urine protein +-. In addition, pregnancy hypertension, preeclampsia, etc., may also lead to impaired renal filtration function, and then urine protein.