MTP in quantitative urine protein test refers to urine microalbumin. Urine albumin in the range of 30 to 300 mg/L is urine microalbumin. Urinary microalbumin can be seen in physiologic and pathologic factors. Very small amounts of albumin can be present in urine under physiologic conditions, while microalbuminuria reflects damage to the renal filtration membrane, resulting in abnormal leakage of protein. 1. Physiological factors: These include factors such as severe exertion and strenuous activities, and these changes can be relieved by calm rest. 2. Pathological factors: usually include acute and chronic nephritis, diabetic nephropathy, pyelonephritis, interstitial nephritis, pre-eclampsia in pregnancy, etc. The cause of the disease needs to be clarified under the guidance of a doctor, and symptomatic treatment. Urine microalbumin is an early manifestation of kidney damage, and is mainly used for early screening of diabetic nephropathy and hypertensive nephropathy. When the patient’s urine microalbumin is abnormal, it is recommended to go to the hospital in a timely manner, under the guidance of the physician, to identify the cause and then give targeted treatment to avoid delaying the condition.