The ratio of urine protein to urine creatinine, its reference range is 0-30. if it is within this range, it means there is no proteinuria and the kidney is normal. If it is between 30-300, it means there is a small amount of proteinuria. If it is greater than 300, it means there is a large amount of proteinuria. The advantage of this test is that it is relatively accurate in assessing the amount of protein inside the urine, and it corresponds to the 24-hour urine protein quantification, which is relatively parallel. If the ratio of urine protein to urine creatinine is normal, the 24-hour urine protein quantification will also be normal. The advantage of this test is that it is easy to obtain, and it is usually possible to check morning urine without the complexity of 24-hour urine protein quantification. After the appearance of urine protein often means that there is kidney damage, you need to go to the nephrology department of the hospital for further consultation to assess the severity of kidney disease, and according to the relevant results, targeted drug treatment.