Article · 4 min read
Smoking and Kidney Disease
How smoking damages the kidneys and why quitting protects them.
Last updated: 24/9/2026
Smoking damages blood vessels throughout the body, including the kidneys, and speeds up kidney damage in people with diabetes or high blood pressure.
The effects
Smoking reduces blood flow to the kidneys and worsens protein leak, accelerating loss of function.
Quitting helps
Quitting slows progression and reduces heart risk. Ask your doctor about support to quit.
Frequently Asked Questions
Does smoking cause kidney failure?
It is not usually the sole cause but strongly worsens kidney disease.
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.