The normal value of urinary microalbumin is <30mg/24h or <20mg/L. When it exceeds 30mg/24h or 20mg/L, attention should be paid. If it is caused by physiological factors, no medication is needed; if it is caused by pathological factors such as diabetic nephropathy, hypertensive nephropathy, etc., metformin and drugs such as captopril and chlorosartan potassium can be taken for symptomatic treatment. 1. Physiological factors: common in strenuous exercise, long time standing, fever, high protein diet, etc. Generally, there is no need to take medication, and it can be relieved after removing the triggers. 2. Pathological factors: common in diabetic nephropathy, hypertensive nephropathy and other diseases, this time need to comply with medical advice to standardize the use of hypoglycemic and antihypertensive drugs and other treatment. (1) diabetic nephropathy: mostly due to diabetes causing kidney damage, patients need to actively control blood glucose, can follow the doctor's instructions to take metformin, glimepiride tablets and reglanatide and other drugs for treatment. (2) Hypertensive nephropathy: usually due to hypertension induced glomerular arteriosclerosis, resulting in impaired renal function, generalized edema, increased nocturia and lumbago, etc., and in severe cases, urinary protein may occur, and patients are advised to take captopril tablets, potassium chlorosartan and other antihypertensive drugs as prescribed by the doctor for active control of blood pressure in order to improve the condition. If urinary microalbumin is found, it is recommended that the patient consult a doctor in a timely manner and follow the doctor's instructions to standardize the diagnosis and treatment, do not self-medication.