Urinalysis microalbumin 150mg/L means the presence of microalbumin in urine, which may be related to physiological factors such as strenuous exercise; or pathological causes such as nephritis, pyelonephritis and so on. 1. Physiological factors: when patients do strenuous exercise before doing urine test for microalbumin, it will affect the value of albumin in the urine, which is easy to appear in the above situation. 2. Pathologic factors (1) Nephritis: Nephritis may be induced when kidney is infected by bacteria or autoimmune function is abnormal. At this time, renal function is impaired, glomerular filtration membrane function is abnormal, and high microalbumin in urine test may occur. (2) Pyelonephritis: Pyelonephritis may be induced when subjected to bacterial infection, urinary tract obstruction and other conditions. After suffering from this disease, it may also lead to the albumin in urine cannot be reabsorbed and utilized normally, causing the above situation. There are many other causes of Urine Test Microalbumin 150mg/L, such as hypertensive nephropathy, diabetic nephropathy, urinary stones and other conditions. It is recommended that urine microalbumin 150mg/L patients, should go to the regular hospital for further examination, to clarify the specific causes, targeted treatment.