I have been suffering from chronic nephritis for 20 years. Creatinine 100 is renal function seriously damaged? How much renal function is left?

Hello, according to the description of your illness, the normal creatinine is 44- 133umol/L for male, 70- 108umol/L for female. Your renal function damage is not very serious. However, it does not mean that the creatinine value will always be stable. I suggest you treat it as soon as possible.