Quick answer. You can protect your kidneys by controlling diabetes and blood pressure, being careful with painkillers such as NSAIDs, staying well hydrated, not smoking, and keeping a healthy weight. Because kidney disease is usually silent, regular screening with a simple eGFR blood test and a urine albumin-to-creatinine ratio (uACR) is key, especially if you have diabetes, high blood pressure or a family history. NKF Singapore and GP clinics offer kidney screening for eligible adults. This is general information, not personal medical advice; speak to your doctor about your own risk.
Your kidneys quietly do vital work every day, filtering waste, balancing fluids and helping control blood pressure. Chronic kidney disease (CKD) often develops without symptoms, so by the time problems appear, significant damage may already be done. In Singapore, where diabetes and high blood pressure are common, protecting your kidneys is largely about managing these risks and getting screened regularly. The encouraging news is that most of the key protective steps are simple, everyday habits combined with a couple of straightforward tests.
At a glance
| Area | What to do | Why it helps |
|---|---|---|
| Diabetes | Keep blood sugar within target | High sugar damages kidney blood vessels |
| Blood pressure | Control BP, often below targets your doctor sets | High BP harms the kidneys' filters |
| Medications | Avoid unnecessary NSAID painkillers | NSAIDs can reduce kidney blood flow |
| Hydration | Drink enough water; avoid dehydration | Helps kidneys clear waste |
| Lifestyle | No smoking, healthy weight, less salt | Reduces strain and vascular damage |
| Screening | Yearly eGFR and urine uACR if at risk | Detects damage early when treatable |
Control diabetes and blood pressure
Diabetes and high blood pressure are the two leading causes of kidney disease in Singapore, together responsible for most kidney failure cases. Protecting your kidneys starts with managing these well:
- Keep blood glucose within the targets your doctor sets if you have diabetes or pre-diabetes.
- Monitor and control blood pressure; medicines such as ACE inhibitors or ARBs can also protect the kidneys.
- Attend regular reviews and take prescribed medicines consistently.
Be careful with medications, especially NSAIDs
Some common medicines can harm the kidneys if overused. Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, naproxen and diclofenac can reduce blood flow to the kidneys, particularly with long-term or high-dose use.
- Use NSAIDs only as needed and at the lowest effective dose.
- If you have reduced kidney function, diabetes, heart disease or high blood pressure, check with a doctor or pharmacist before taking NSAIDs.
- Be cautious with some traditional remedies and unverified supplements, which can occasionally contain kidney-harming substances; tell your doctor what you take.
Stay hydrated and eat kidney-friendly
Good hydration helps your kidneys clear waste, while diet plays a supporting role:
- Drink enough water through the day and avoid dehydration, especially in Singapore’s heat or during exercise.
- Reduce salt to help control blood pressure.
- Favour a balanced diet with plenty of vegetables and fruit, and moderate processed foods and sugary drinks.
- Limit alcohol and maintain a healthy weight.
If you already have CKD, your doctor or dietitian may give specific advice on fluid, salt, potassium or protein.
Don't smoke and stay active
Smoking damages blood vessels throughout the body, including in the kidneys, and worsens diabetes and high blood pressure. Quitting smoking is one of the most effective things you can do for kidney and heart health. Regular physical activity, in line with national guidelines, supports healthy weight, blood pressure and blood sugar, all of which protect your kidneys.
Get screened: eGFR and urine ACR
Because CKD is usually silent, screening is the only reliable way to catch it early. Two simple tests are used:
- eGFR – a blood creatinine test that estimates how well your kidneys filter.
- uACR – a urine test that detects albumin (protein) leaking into the urine, which can appear before eGFR drops.
NKF Singapore recommends adults at risk get their kidneys checked at least once a year. Free or subsidised kidney screening is available through NKF and participating GP clinics for eligible adults, and screening is also part of chronic disease follow-up at polyclinics under programmes like Healthier SG.
Who is at higher risk and should screen?
You are at higher risk of kidney disease, and should be screened, if you have any of the following:
- Diabetes or pre-diabetes.
- High blood pressure.
- Heart or blood vessel disease.
- Obesity (a higher BMI).
- A family history of kidney disease, diabetes or high blood pressure.
- Older age, or no kidney check in the past year.
If you fall into any of these groups, ask your GP or polyclinic about kidney screening.
What to expect at a kidney screening
Kidney screening is quick and straightforward. You will usually have a blood sample taken to estimate your filtration rate (eGFR) and provide a urine sample to check for protein (uACR). No special fasting is normally needed just for kidney tests, although your clinic may combine them with other blood tests that do require fasting, so check when you book. Results are typically explained at a follow-up, and if anything is abnormal your doctor may repeat the test or arrange further checks before deciding on next steps.
Costs and subsidies
Several conditions that drive kidney disease, including diabetes, high blood pressure, high cholesterol and chronic kidney disease itself, are covered under the national Chronic Disease Management Programme (CDMP). This means eligible patients may use MediSave to help pay for approved outpatient care and medication, and those with a CHAS, Pioneer Generation or Merdeka Generation card may receive further subsidies at participating GP clinics. Polyclinic care under Healthier SG also includes chronic disease follow-up. Exact subsidies depend on your eligibility, so ask your GP or polyclinic what applies to you.
Questions to ask your doctor
- Am I at higher risk of kidney disease, and how often should I be screened?
- What are my latest eGFR and uACR results, and what do they mean?
- Are any of my current medicines, including painkillers, a concern for my kidneys?
- Are my blood pressure and blood sugar where they should be to protect my kidneys?
Common questions
If my kidney test is normal, do I still need to repeat it?
Yes, if you have ongoing risk factors such as diabetes or high blood pressure. Because kidney disease is usually silent, regular checks, often yearly, are the only reliable way to catch a problem early.
Related guides
- Best Nephrology & Kidney Clinics in Singapore — our editorial shortlist
- Understanding CKD
- Dialysis and treatment
- Seeing a kidney specialist
Sources
- National Kidney Foundation (NKF) Singapore – Are You At Risk?
- NKF Singapore – Kidney Screening at GP Clinics
- HealthHub – Keeping Your Kidneys Healthy
- MOH – Chronic kidney disease prevalence and prevention
Part of our Kidney health guides · Browse all health topics