Pregnant women with protein in urine suggest further examination to clarify the cause, generally seen in the following cases: first, when the occurrence of urinary tract infection can be protein in the urine, the content of protein more than less than 2g and accompanied by urinary tract irritation symptoms, in addition to protein urine test can also be seen in the number of white blood cells or bacteria elevated, further 24h urine protein quantitative testing and urine culture test to confirm the diagnosis of infection; second During pregnancy, hypertension may lead to elevated blood pressure and kidney damage, which can lead to urinary protein and may be accompanied by convulsions and hypertension, which requires further examination to confirm the diagnosis; third, the presence of kidney disease, such as glomerulonephritis or acute glomerulonephritis and other diseases, which can lead to large amounts of protein in the urine and quantitative urine protein testing. Detection, 24 hours greater than 3.5g, the need for relevant kidney function tests to clarify the presence of kidney disease.