It is impossible to determine the stage of kidney disease with generalized swelling, kidney disease staging is staged by glomerular filtration rate. Edema is a common clinical manifestation of renal disease, which can also be manifested as hematuria, proteinuria, hypertension and other symptoms. Edema is only a clinical symptom and cannot be used as the basis of renal disease staging. Kidney disease staging is mainly used for chronic kidney disease staging, which contains a total of 5 stages. Stage 1 is normal or elevated glomerular filtration rate, greater than or equal to 90ml/min. Stage 2 is a mild decrease in glomerular filtration rate, at 60 to 89 ml/min. Stage 3 is also divided into stage 3a and stage 3b. stage 3a is a mild to moderate decrease in glomerular filtration rate, at 45 to 59 ml/min. stage 3b is a moderate to severe decrease in glomerular filtration rate, at 30 to 44 ml/min. Stage 4 glomerular filtration rate is severely decreased at 15 to 29 ml/min. Stage 5 is end-stage renal disease, i.e., uremia, with a glomerular filtration rate of less than 15 ml/min or dialysis. When generalized swelling occurs in kidney disease, it is recommended to seek medical treatment in time, improve the renal function test, and standardize the treatment under the guidance of professional doctors.