When Is Dialysis Needed? Kidney Failure Stages Explained
If a parent's or your own kidney reports have been slipping, one fear usually arrives first: “Will dialysis be needed?” It's a heavy question, and the internet rarely answers it calmly.
This doctor-reviewed guide explains, in plain language, what dialysis actually is, the stages of kidney function that lead up to it, and the numbers and symptoms doctors watch — so you can walk into your next appointment informed rather than frightened.
Key Takeaways
- Dialysis is a treatment that does the kidneys' filtering work when they can no longer do enough of it themselves. It is a support — not a medicine, and not a “cure” for kidney disease.
- Doctors generally start to consider dialysis in advanced kidney failure — broadly when eGFR falls below about 15 (Stage 5) — but the decision depends on symptoms, not a single number.
- Most people at earlier stages (1–3) never need dialysis. The goal there is to protect the kidney function that remains.
- Kidney staging needs repeated tests over about 3 months — one bad reading is not a diagnosis.
- Ayurvedic herbs and lifestyle are traditionally used to support kidney wellness alongside — never instead of — medical care.
What Is Dialysis, Really?
Your kidneys filter waste, excess salt and extra fluid out of your blood. When they can no longer keep up, those wastes build up and can make a person very unwell. Dialysis is a way to do that filtering artificially.
There are two main types. Haemodialysis filters your blood through a machine, usually at a hospital or centre a few times a week. Peritoneal dialysis uses the lining of your own abdomen and a special fluid, and can often be done at home. Which one suits a person is a decision for the kidney specialist (nephrologist).
Importantly, dialysis can be temporary (for example, in a sudden, reversible kidney injury) or long-term (in chronic, advanced kidney failure). It supports the body — it does not repair the kidneys.
The 5 Stages of Kidney Function
Kidney health is measured mainly by eGFR (estimated glomerular filtration rate), a number calculated from your creatinine, age and sex. Higher eGFR means better filtering. Doctors group chronic kidney disease (CKD) into five stages:
| Stage | eGFR (mL/min/1.73m²) | What it broadly means |
|---|---|---|
| Stage 1 | 90 or above | Normal filtering, but some sign of kidney stress (e.g. protein in urine) |
| Stage 2 | 60–89 | Mildly reduced filtering |
| Stage 3a | 45–59 | Mild-to-moderate reduction |
| Stage 3b | 30–44 | Moderate-to-severe reduction |
| Stage 4 | 15–29 | Severely reduced — prepare and plan with a nephrologist |
| Stage 5 | Below 15 | Kidney failure — dialysis or transplant is usually discussed |
Read this carefully: staging is based on eGFR that stays low across repeated tests over roughly three months — not a single report. A one-off dip after dehydration, infection or a heavy protein meal is common and often recovers.
When Do Doctors Actually Start Dialysis?
Here's the part most searches get wrong: there is no fixed creatinine or eGFR number that automatically means dialysis. Two people with the same eGFR can have very different plans.
Doctors typically consider dialysis in Stage 5 (eGFR below 15), but the trigger is usually a combination of the lab trend and how the person feels and functions. Signs that push the decision include:
- Uraemic symptoms — persistent nausea, vomiting, loss of appetite, deep fatigue, or confusion from waste build-up.
- Fluid overload — swelling and breathlessness that medicines can no longer control.
- Dangerously high potassium or acid levels in the blood.
- Very low, still-falling eGFR despite treatment.
Sometimes dialysis is started a little earlier (around eGFR 5–10) if symptoms are severe; sometimes later if the person is stable. It is always an individualised call made with a nephrologist.
Symptoms That Kidney Function May Be Declining
Kidneys are quiet organs — problems often show up late. Worth getting checked if you notice:
- Swelling in the feet, ankles, face or around the eyes.
- Foamy urine, blood in urine, or a clear change in how much you pass.
- Unusual tiredness, weakness or poor concentration.
- Nausea, loss of appetite, itching, or difficulty sleeping.
- Breathlessness or a puffy, heavy feeling.
These can have many causes — but with diabetes, high blood pressure or a family history of kidney disease, they deserve a prompt KFT and a doctor's review.
The Ayurvedic Perspective
In Ayurveda, healthy urine formation and waste clearance (mutravaha srotas) rely on balanced doshas and a strong digestive fire (agni) so that metabolic waste (ama) does not accumulate. Several herbs are described in classical texts — and studied in modern research — for supporting kidney and urinary wellness. They are traditionally used to support normal function, not to treat kidney failure or replace dialysis.
- Punarnava (Boerhavia diffusa) — a classical rejuvenative for the urinary system, traditionally used to support healthy fluid balance.
- Gokshura (Gokhru, Tribulus terrestris) — long used to support healthy urine flow and the urinary tract.
- Varuna (Crataeva nurvala) — traditionally associated with kidney and urinary wellness.
An honest caution: if kidney function is already advanced (Stage 4–5) or a person is on dialysis, some herbs and “kidney tonics” can be high in potassium or unsuitable. In that situation, use nothing without your nephrologist's approval. Ayurveda is most useful early, as part of protecting kidney health.
Practical Steps to Protect Kidney Function
- Control blood sugar and blood pressure. Diabetes and hypertension are the two leading causes of kidney failure in India — keeping them in range is the single most protective thing you can do.
- Hydrate sensibly. Enough water for most healthy adults; but if you already have a kidney condition, follow the specific fluid limit your doctor sets.
- Go easy on salt and processed food — pickles, papad, namkeen and packaged snacks strain the kidneys.
- Moderate (don't crash) protein and avoid heavy protein powders when advised.
- Avoid painkiller overuse (regular NSAIDs) and don't self-medicate.
- Get your KFT monitored on the schedule your doctor advises — trends matter more than any one report.
When to See a Doctor
Please see a physician — and ask about a nephrologist referral — if you have a persistently low eGFR or rising creatinine, worsening swelling or breathlessness, sharply reduced urine, or ongoing nausea and fatigue. If you have diabetes, high blood pressure or a known kidney condition, regular monitoring is not optional — it's how dialysis is best delayed or avoided where possible.
How CreatiCare Fits
For daily Ayurvedic support of kidney wellness, CreatiCare™ Creatinine Capsules bring together traditional herbs like Punarnava and Gokshura that are traditionally used to support healthy creatinine and kidney function. It is best seen as one part of a bigger routine — blood-pressure and sugar control, sensible diet and your doctor's monitoring do the heavy lifting. If you have advanced kidney disease or are on dialysis, please check with your physician before taking any supplement.
Frequently Asked Questions
1. Can dialysis be avoided? Sometimes, and it depends heavily on the cause and stage. Catching kidney trouble early and controlling blood pressure, sugar and other risk factors can slow progression and, for some people, delay or avoid dialysis — but there is no guarantee. Certain sudden (acute) kidney injuries can also recover. Your nephrologist can give the most honest picture for your situation.
2. At what creatinine level is dialysis needed? There is no single creatinine number that decides it. Doctors look at eGFR trends together with symptoms like nausea, fluid overload and high potassium. Dialysis is generally discussed in Stage 5 (eGFR below 15), but the “when” is individual.
3. Is dialysis permanent? Not always. In acute, reversible kidney injury it may be temporary until the kidneys recover. In chronic, advanced kidney failure it is usually long-term unless a transplant is possible.
4. Does high creatinine always mean dialysis? No. A high creatinine can come from dehydration, diet, medicines, muscle mass or a temporary illness. It needs review and repeat testing — but most raised readings do not lead to dialysis.
5. Can Ayurvedic medicine replace dialysis? No. Ayurvedic herbs are traditionally used to support kidney wellness, mainly in earlier stages, and never as a substitute for dialysis or a doctor's treatment in kidney failure. Always tell your doctor about anything you take.
Written & medically reviewed by Dr. Istuti, BAMS — Ayurvedic physician (Bachelor of Ayurvedic Medicine and Surgery) with a focus on kidney, urinary, liver and metabolic wellness. Dr. Istuti reviews all Cureayu health content for accuracy and compliance.
Medically reviewed on September 19, 2026.
Disclaimer: This content is for educational purposes and is not a substitute for professional medical advice. Consult a qualified physician before starting any supplement, especially if you have a kidney/prostate condition or take medication.
Sources
- National Kidney Foundation (NKF) — Dialysis. https://www.kidney.org/atoz/content/dialysisinfo
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) — Kidney Failure & Dialysis. https://www.niddk.nih.gov/health-information/kidney-disease/kidney-failure
- MedlinePlus — Dialysis. https://medlineplus.gov/dialysis.html
- National Kidney Foundation — Estimated GFR (eGFR). https://www.kidney.org/atoz/content/gfr
- Ministry of AYUSH, Government of India — Ayurveda. https://www.ayush.gov.in/
Related reading
- Renal Health Care (pillar)
- Is High Creatinine Dangerous? When to Worry
- Normal GFR Level by Age Chart
- How to Improve Kidney Function Naturally