Egfr is the estimated glomerular filtration rate, and the normal range is generally between 80-120mL/min. Egfr is a more accurate clinical index, which can accurately reflect the glomerular function, and the glomerular filtration rate is calculated after the patient has been evaluated with blood tests and urine creatinine tests. The index is generally higher in men than in women, but the value may gradually decrease with age.Egfr can help distinguish chronic kidney disease and can also evaluate the state of renal function in patients. If patients have kidney abnormalities, they can go to the local regular hospital for Egfr examination, and then according to the patient’s age, physical condition, gender, to determine whether there is kidney disease.