Understanding diabetic kidney disease

Diabetic kidney disease happens when high blood sugar damages the kidneys’ tiny blood vessels over time. The Liver Hope Foundation shares clear, practical education to help people understand their kidney health, ask informed questions, and connect with appropriate care.

Early monitoring can make a meaningful difference. Regular blood and urine tests can help detect changes in kidney function before noticeable symptoms develop. Managing blood sugar, blood pressure, and cholesterol, taking medications as prescribed, and discussing any concerns with a healthcare professional may help support kidney health and guide timely next steps.

Frequently asked questions

Learn how diabetes can affect the kidneys, what to watch for, and which yearly tests can help find kidney damage early. This information is for education only and does not replace care from your healthcare provider.

What warning signs should I discuss with my healthcare provider?

Symptoms can appear later and may include foamy or bubbly urine, swelling in the feet, ankles, hands, or around the eyes, rising or hard-to-control blood pressure, fatigue, trouble concentrating, and changes in urination—especially needing to urinate more at night.

What kidney tests should people with diabetes have each year?

Ask your healthcare provider about a urine albumin-to-creatinine ratio (UACR) and an estimated glomerular filtration rate (eGFR) blood test. UACR looks for protein in the urine, while eGFR estimates how well your kidneys are filtering blood. Your provider can explain when and how often you need these tests.

Can diabetic kidney disease be prevented or slowed?

While each person’s care plan is different, keeping blood sugar and blood pressure in target ranges can reduce strain on the kidneys. Not smoking, taking prescribed medicines as directed, staying active as advised, and keeping regular healthcare visits may also help. Speak with your healthcare provider before making changes to your treatment plan.

How can The Liver Hope Foundation help?

The Liver and Kidney Hope Foundation supports people through education and community—not medical care. Explore the free Diabetic Kidney Disease Guide, available online and as a PDF, for plain-language information about testing, treatment, and prevention. Our chapter network and Social Work department may also help connect you with community resources. For diagnosis and treatment, please contact your healthcare provider.

How does diabetes cause kidney damage?

Your kidneys work like coffee filters: millions of tiny filters clean your blood and send waste out in urine. When blood sugar stays high for a long time, it can damage the tiny blood vessels in those filters—like pouring syrup through them day after day. The filters can begin to leak, allowing protein that should remain in the blood to pass into the urine.

Why does high blood pressure make diabetic kidney disease worse?

High blood pressure puts extra force on the kidneys’ delicate blood vessels, like water being pushed through a filter too hard. Over time, this added strain can speed up kidney damage. Managing both blood sugar and blood pressure helps protect the kidney function you have.

Who has a higher risk of diabetic kidney disease?

Risk is higher for people who have had diabetes for many years, especially when blood sugar is often above target. Other risk factors include high blood pressure, smoking, being overweight, a family history of kidney disease, and being Black, Hispanic, Native American, or Asian.

Can diabetic kidney disease cause symptoms early?

Usually, no. Early kidney damage often has no symptoms, which is why regular testing is so important. Waiting for symptoms may mean kidney damage has already progressed.

Take the next step for your kidney health

Ask your healthcare provider about your yearly UACR and eGFR kidney tests. Then explore our free Diabetic Kidney Disease Guide for understandable information and support. The Liver Hope Foundation is an educational nonprofit and not a medical provider.