A higher than normal creatinine value is called high creatinine. Creatinine includes blood creatinine and urine creatinine, but blood creatinine is a more meaningful measure of kidney function. So high creatinine generally refers to high blood creatinine. The normal value of blood creatinine varies from hospital to hospital, but in general, the normal value of blood creatinine is 44-133umol/L. When blood creatinine exceeds 133umol/L, it means kidney damage, renal insufficiency and kidney failure. (Above 133umol/L is the inflammatory damage stage, 186umol/L is the kidney function damage stage, and 451umol/L is the kidney function failure stage). So does a normal creatinine value indicate healthy kidneys? Blood creatinine is a common indicator to test kidney function. Blood creatinine is within the normal range, thinking that your kidney function is completely fine, in fact, it is not right to have such an idea. Blood creatinine value does not reflect the status of kidney function in a timely and accurate manner. When most of the human kidney suffers pathological damage and the glomerular filtration rate decreases in a large proportion (more than 50%), the elevated blood creatinine may only become clinically apparent at this time. The change of serum creatinine concentration is mainly determined by the glomerular filtration capacity (glomerular filtration rate). Therefore, it is important to pay attention to high creatinine. When the filtration capacity decreases, the creatinine concentration increases. A higher than normal blood creatinine mostly means kidney damage. Blood creatinine can more accurately reflect the damage of kidney parenchyma, but is not a sensitive indicator. Because the blood creatinine rises significantly only when the glomerular filtration rate decreases to 1/3 of normal. Through the above introduction, we hope you can pay attention to it. As you can see, blood creatinine does not reflect kidney disease in a timely manner, so you still need to do more other tests in order to detect kidney disease in a timely manner and do treatment early, never take it lightly, always pay attention to your health is the most important.