The normal range of urine microalbumin to creatinine ratio is less than 30mg/g. Between 30~300mg/g belongs to small amount of proteinuria, while more than 300mg/g is large amount of proteinuria, the larger the value, the more serious the kidney function damage. Urine microalbumin and creatinine ratio is a sensitive indicator to reflect the kidney function damage, and it is a method to detect the amount of urine protein. Usually you can choose morning urine for the measurement, because morning urine has better stability and timeliness, has consistency with the urinary albumin excretion rate, and is easy to retain. Patients with abnormal urine microalbumin and creatinine ratios are advised to go to the hospital in a timely manner to clarify their condition and follow the doctor’s instructions for standardized treatment.