12/08/2026
What Does Your Serum Creatinine Level Mean for Your Kidneys?
Creatinine is a waste product produced mainly from normal muscle activity.
Your creatinine level gives you an important clue about how well your kidneys are filtering waste from your blood.
Healthy kidneys filter creatinine from your blood and remove it from your body through your urine.
Generally, normal creatinine levels are:
Males: 0.7-1.3 mg/dL
Females: 0.6-1.1 mg/dL
However, reference ranges can vary between laboratories and individuals.
When creatinine rises, it usually means your kidneys are not filtering as efficiently as they should.
But a high creatinine level does not automatically mean kidney disease. Dehydration, muscle mass, diet, certain medications, and other factors can affect your result.
Your creatinine level is also used to calculate your eGFR (estimated glomerular filtration rate), which provides a better estimate of how well your kidneys are filtering.
Takeaway:
Don’t look at your creatinine number alone. Look at your creatinine, eGFR, and other kidney tests together to get a clearer picture of your kidney health.
Know your numbers! Understand your kidneys!