Diabetes and kidney health: Why regular checks matter

By Blua Digital health by Bupa

4 minute read

Published 6 July 2026

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Key takeaways

Kidney disease can be caused by high levels of blood glucose, meaning people living with diabetes are at a higher risk.
An annual Kidney Health Check can help lead to early detection and more effective treatment.
Ask your doctor about how to maintain good kidney function when living with diabetes.

Living with diabetes means you have an increased risk of kidney disease.

Including kidney checks in your cycle of care can help monitor function and overall good health.

The link between diabetes and kidney disease

Your kidneys have many roles in the body^1,2, but the primary one is to filter waste from the blood and get it out of the body through urine.

Kidneys also help to regulate blood pressure.

One of the main causes of chronic kidney disease (CKD) is diabetic nephropathy. This is when constantly high blood glucose levels in the body damage the kidney’s filtering system, leading to waste build up.

Because diabetes causes high blood glucose levels, people living with diabetes are more at risk of kidney disease and damage.

People with CKD can lose up to 90% of their kidney function with no symptoms, making early detection and management crucial in maintaining kidney health and treating the condition well. Early kidney disease can be slowed down by up to 50%, meaning it can take more time before kidney dialysis or transplant is required.

What is a kidney test?

Diabetes Australia recommends having a Kidney Health Check at least once a year if you have diabetes.¹

A Kidney Health Check has 3 parts.³

Blood test: this will show how well your kidneys are filtering your blood
Urine test: this will show any albumin (protein) in your urine
Blood pressure test: high blood pressure and kidney disease are closely linked.

How often do I need a kidney test?

If you are living with type 1 diabetes or type 2 diabetes, your doctor will generally recommend a Kidney Health Check annually, but depending on your situation you may need more regular testing.^4,5

Always follow your physician’s advice and guidance. If you have gestational diabetes or prediabetes, your doctor will advise how often you need a kidney check.

How to support good kidney function

As well as staying on top of your annual health checks, there are ways to help support good kidney function at home.6

Avoid smoking
Eat a well-balanced diet rich in fresh vegetables, lean meat, low-fat dairy and wholegrains
Reduce salt and sugar intake
Stay active with regular exercise
Drink plenty of water
Avoid alcohol
Maintain a healthy body weight

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