Whether creatinine 230μmol/L is serious or not depends on the cause of renal insufficiency and the degree of urgency. If it is acute renal insufficiency, it is usually not serious and may return to normal after active and effective treatment; if it is chronic renal insufficiency, it is more serious. Generally speaking, the normal level of blood creatinine is 53~106μmol/L for men and 44~97μmol/L for women, and the standard value is different in different hospitals, so you can check the reference value according to your local hospital. Creatinine 230μmol / L suggests that the patient has kidney function damage, seen in acute renal insufficiency or chronic renal insufficiency. If acute renal insufficiency leads to elevated blood creatinine, common causes such as urinary tract obstruction, gastrointestinal bleeding, drug damage, etc., patients may show symptoms such as decreased urine output, proteinuria, edema and hypertension, etc., which are generally not serious, and the condition can be normalized by removing the causative factors (e.g., improving renal perfusion, relieving obstruction, etc.). Elevated blood creatinine caused by chronic renal insufficiency is more serious, because generally creatinine can not return to normal, and most of them will be elevated progressively. Treatment is needed to address the specific causes of hypertension, diabetes mellitus, rheumatoid immune disease, etc., as well as correction of complications such as anemia, calcium and phosphorus disorders, acidosis, etc., and renal replacement therapy if necessary. If you find creatinine 230μmol/L, you need to go to the regular hospital in time to find out the cause and follow the doctor’s instructions to standardize the treatment, don’t be negligent, so as not to delay the condition.