Blood creatinine is normal 53 to 106umol/L for men and 44 to 97umol/L for women, with blood creatinine of 96umol/L falling within the normal range. Blood creatinine generally refers to endogenous creatinine, which in turn is a product of human muscle metabolism. In muscle, creatine is formed slowly through an irreversible non-enzymatic dehydration reaction, and then released into the bloodstream for urinary excretion. Elevated blood creatinine is categorized into physiologic and pathologic conditions. Physiological ones include strenuous exercise, drinking large amount of meat, etc.; pathological ones include acute and chronic renal insufficiency. If symptoms of abnormal blood creatinine appear, you should go to the hospital in time for consultation and treatment under the guidance of professional physicians.