Guide · 6 min read
High Creatinine: What It Means and When to Worry
Why creatinine rises, what a high reading can and cannot tell you, and the sensible next steps.
Creatinine is a waste product made by your muscles and cleared by the kidneys. When kidneys slow down, creatinine collects in the blood — so a high value can be an early warning.
What can raise creatinine
- ✓Reduced kidney function
- ✓Dehydration
- ✓Heavy exercise shortly before the test
- ✓A high-protein meal or creatine supplements
- ✓Certain medicines
Sensible next steps
Do not panic or chase internet "cleanses." Repeat the test, stay hydrated, and let a nephrologist review the trend together with your eGFR and urine protein.
Can you lower creatinine yourself?
There is no safe do-it-yourself fix. Protecting kidney function means treating the cause — blood pressure, blood sugar, and avoiding harmful medicines.
Frequently Asked Questions
Is a high creatinine always kidney disease?
No. Dehydration, exercise and diet can raise it temporarily. A doctor confirms with repeat tests and eGFR.
Should I stop eating protein?
Not on your own. A renal dietitian will guide you based on your labs and stage.
Sources
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This page is for general education only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified doctor about your specific condition.