Creatinine 240μmoI/L also needs to distinguish whether it is acute renal failure or chronic renal failure. If it is acute renal failure, most of them can be cured, so it does not affect life expectancy; if it is chronic renal failure, it may last 5-10 years before it enters the uremic phase and requires long-term hemodialysis. Creatinine is an indicator of kidney function, elevated creatinine represents renal failure, but renal failure is also divided into acute renal failure and chronic renal failure, the prognosis of these two diseases are different. Acute renal failure has a better prognosis, and most of them can be cured. Therefore, the creatinine is temporarily elevated, there is no need to worry too much, we must cooperate with the treatment, regular review, it is possible to be cured. Chronic renal failure, on the other hand, cannot be cured and requires long-term conservative treatment with medication. If the creatinine is 240μmoI/L, it is possible to enter the uremic phase in 5-10 years and need long-term hemodialysis to survive.