The normal range of GFR glomerular filtration rate is 80~120ml/min. Glomerular filtration rate is a useful indicator of kidney function and is calculated using a formula. Formulas used to estimate GFR include the MDRD formula and the Chronic Kidney Disease Epidemiologic Study (CKD-EPI) formula. GFR is influenced by a number of factors, including serum creatinine levels, weight, age, race, and gender. A glomerular filtration rate below normal is an important diagnostic indicator of chronic kidney disease and a measure of kidney function. When the glomerular filtration rate is abnormal, patients are recommended to consult regular hospitals to clarify the cause of the disease and follow the doctor’s instructions for standardized treatment.