Fortis Hospital

Guide · 7 min read

Diabetes and Your Kidneys: Preventing Damage

How diabetes harms the kidneys, how diabetic kidney disease is caught early, and how to slow it down.

Last updated: 24/9/2026

Diabetes is the leading cause of kidney disease in India. Over years, high blood sugar damages the small vessels in the kidney filters — a process called diabetic nephropathy.

How the damage happens

High sugar injures the glomeruli, causing protein to leak into urine. Without control, scarring worsens and kidney function declines.

Catching it early

  • ✓Urine albumin test — the earliest sign
  • ✓eGFR blood test
  • ✓Yearly screening for everyone with diabetes

How to slow it

  • ✓Keep blood sugar and HbA1c in range
  • ✓Control blood pressure (often with ACE inhibitors or ARBs)
  • ✓Limit salt and follow a kidney-friendly diet
  • ✓Avoid smoking and kidney-harming painkillers

Frequently Asked Questions

Can diabetic kidney disease be reversed?

Early changes can sometimes be slowed or partly improved with tight control, but advanced scarring is usually not reversible.

How often should diabetics test their kidneys?

At least once a year with urine albumin and eGFR, more often if anything is abnormal.

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.

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