The way doctors measure how well your kidneys filter waste from your blood is by the estimated glomerular filtration rate, or eGFR. Your eGFR is a number based on your blood test for creatinine, a waste product in your blood. The stages of kidney disease are based on the eGFR number. Learn more about the eGFR test.

Stage 1 Stage 2 Stage 3 Stage 4 Stage 5

eGFR in normal range (greater than 90) with other signs of kidney damage, like protein in urine or physical damage to the kidneys

eGFR in normal range (60-89) with other signs of kidney damage, like protein in urine or physical damage to the kidneys

eGFR 30-59, moderate kidney damage

eGFR 15-29, severe kidney damage

eGFR less than 15, the kidneys are close to failure or have already failed