Normally a glomerular filtration rate of 126 ml/min is not normal and is mildly high. Glomerular filtration rate is the amount of plasma fluid filtered out through the glomerulus per unit of time (minute), i.e. the amount of ultrafiltrate produced by the kidneys on both sides per unit of time (minute). Glomerular filtration rate cannot be measured directly, but can only be inferred from the renal clearance or plasma clearance of some marker. Normally, the glomerular filtration rate is usually between 80 and 120 ml/min, so a test result of 126 ml/min is an abnormal, mildly high glomerular filtration rate. It may be elevated by physiologic factors such as high protein diet, pregnancy, etc., or pathologic factors such as early diabetic nephropathy. Glomerular filtration rate helps to measure whether the kidney function is normal or not, if this index is abnormal, it is recommended that the patient go to a regular hospital in time, under the guidance of the doctor to give targeted treatment or therapy.