Urine microalbumin is high, and the harm to the organism mainly includes the following aspects: 1, it is possible to form hypoproteinemia. Elevated urinary microalbumin leads to an increase in the leakage of protein, a decrease in plasma albumin, affecting the plasma colloid osmotic pressure, and the emergence of edema in systemic tissues.2, after the leakage of protein, it is easy to lead to a decrease in the body’s resistance, and a variety of infections occur, including respiratory, cutaneous mucous membranes, digestive and urinary tract infections.3, long-term proteinuria is easy to promote glomerular arteriosclerosis, which will affect the renal function at a later stage. It leads to the decrease of glomerular filtration rate and the increase of blood creatinine and urea nitrogen.