The normal value of 24-hour urine protein quantification in pregnant women is 0.3g/24 hours, so 0.37g/24 hours is not serious, generally considered hypertension in pregnancy, chronic nephritis and nephrotic syndrome. 1. Hypertension during pregnancy: During pregnancy, the presence of high blood pressure will lead to increased blood flow, resulting in increased burden on the kidneys, and even lead to kidney damage, causing the appearance of urinary protein. 2. Nephrotic syndrome: it will lead to increased permeability of the glomerular basement membrane of the kidneys, resulting in damage to the mechanical barrier as well as the charge barrier, which in turn causes the appearance of urinary protein. 3. Chronic nephritis: it will cause the kidney function to be adversely affected, leading to the destruction of the glomerular basement membrane structure, resulting in the glomerular filtration is affected, resulting in the emergence of proteinuria. It is recommended that pregnant women should go to regular hospitals to receive relevant examinations as soon as possible, and according to the results of the examination, combined with the clinical symptoms of pregnant women to decide whether they need to receive treatment.