Urine microalbumin is one of the most sensitive early diagnostic indicators of kidney function. When kidney function is abnormal in the early stage, urine microalbumin will be the first to appear in the urine and be detected, and the degree of elevation is also limited. For minor elevations, or when urine tests are repeated and urine microalbumin returns to normal levels, they are usually due to transient elevations caused by physiological factors, such as a recent cold, fever, medication, or strenuous exercise, cold stimulation, or severe emotional changes, which can cause transient elevations in urine microalbumin, but the elevated levels are basically just above The elevated level is basically just above a certain range of the normal baseline. If urine microalbumin continues to be at a high level and the body has uncomfortable symptoms, such as increased nocturia, weakness in the knees and waist, and a recent decline in immunity and susceptibility to colds, these are early clinical signs of kidney insufficiency, so more detailed tests should be performed to determine whether there are changes in kidney function.