Usually, an elevated urine albumin creatinine ratio (urine ACR) is more serious and needs to be examined as soon as possible and treated with medication as prescribed by the doctor. Under normal circumstances, urine albumin creatinine ratio is 0-30mg/g, if this value is between 30-300mg/g, suggesting microalbuminuria; if this value ≥300mg/g, suggesting clinical proteinuria. Elevated urinary albumin creatinine ratio is common in nephritis, nephrotic syndrome, diabetic nephropathy, hypertension and other diseases. The glomerular filtration barrier is disrupted and permeability is increased, leading to the entry of large molecule proteins in the blood into the urine, resulting in an elevated urine protein creatinine ratio. Compared with total urine protein, elevated urine albumin creatinine ratio can more specifically and sensitively reflect changes in glomerular permeability. If the urine albumin creatinine ratio is elevated, you need to go to the hospital as soon as possible for examination, to clarify the cause of the disease, and actively treat it, so as to avoid delaying the disease.