Urine micro-protein measurement method is mainly through the retention of urine examination, mainly retained morning urine for urine routine, urine microalbumin creatinine ratio and retained 24-hour urine for 24-hour urinary protein quantitative and so on, in order to determine the urinary micro-protein situation. 1. Morning urine: usually take the middle part of the morning urine. Avoid strenuous exercise the day before the test and avoid menstruation for women. 2. 24-hour urine retention: patients in the morning after the morning urine and discarded, retained 24 hours of urine, to the next morning morning urine retention, all retained in a clean container mix and record the total amount of urine microalbumin measurement. Urine microalbumin measurement is generally used in the detection of diabetic nephropathy, urinary tract infection, kidney injury and other diseases. Under normal circumstances, urine albumin should be negative, if the test found that the albumin level increased, it may indicate kidney function injury, it is recommended to consult the hospital in time to clarify the cause of the disease, so as not to delay the condition.