According to the time of urinary protein, if the pre-pregnancy examination found positive urinary protein is generally very difficult to recover, if the proteinuria found after pregnancy can be returned to normal in the postpartum 3 months. 1. pre-pregnancy urinary protein: if the examination found before pregnancy urinary protein, often suggests the existence of pre-pregnancy chronic glomerular disease, such as glomerulonephritis and other diseases. During pregnancy, the increase in renal blood volume causes an increase in urinary protein. In such a case, it is also difficult for the urine protein of pregnant women to return to normal after delivery. 2. Post-pregnancy proteinuria: Some pregnant women do not find protein in the urine before pregnancy, but proteinuria occurs after pregnancy. If the condition of the pregnant woman is stable during pregnancy, the condition will return to normal in about 3 months after delivery. In some cases, the condition is serious and cannot be recovered in a short period of time, but the pregnant women need to undergo nephropathologic examination in order to clarify the type of pathology and to treat the cause of the disease. The speed of recovery depends on the severity of the disease, the control of blood pressure, the postnatal recovery and nursing care. It is recommended to follow the doctor’s instructions to do regular follow-up, under the guidance of the doctor treatment.