Urine microalbumin test requires a 24-hour urine specimen or examination with random urine. In the early stage of various kidney diseases, especially diabetic nephropathy, microalbumin will appear, which often cannot be detected by ordinary urine routine test, and need to be tested specifically for urine microalbumin. The most accurate method is to take a 24-hour urine specimen and then measure the excretion rate of microalbumin, which is the most accurate method of urinary microalbumin detection, but this method takes a longer time to take a urine specimen, and the urine specimen is easy to be measured incorrectly, so it is easy to be inaccurate. Nowadays, random urine is commonly used for urine microalbumin creatinine ratio test, which can be performed with any time urine, and its accuracy and microalbumin excretion rate are not much different. Fever, strenuous exercise and other conditions can lead to increased excretion of albumin, so the microalbumin test needs to avoid these conditions. It is recommended to go to a regular hospital to complete the urine microalbumin test, and if necessary, consult a professional doctor about the precautions of the test.