Kidney Disease Levels: Understanding CKD Stages, Symptoms, Treatment and Kidney Care

Learn about kidney disease levels, CKD stages, eGFR ranges, symptoms, treatment options and when to see a super specialist nephrologist at Prabhakar Bhurke Clinic. ...

September 2, 2026

Introduction

Understanding kidney disease levels can help patients know how seriously their kidneys are affected and what type of medical care may be required. Chronic Kidney Disease (CKD) is generally classified into different stages according to kidney function, particularly the estimated Glomerular Filtration Rate (eGFR), along with other evidence of kidney damage.

Kidney disease can progress gradually, and many people may not experience noticeable symptoms during the early stages. Regular blood and urine testing is therefore important, especially for people with diabetes, high blood pressure, heart disease, or a family history of kidney disease.

The five commonly discussed levels of CKD range from Stage 1 to Stage 5. However, eGFR should not be considered in isolation. The presence of kidney damage, urine protein or albumin, imaging abnormalities, and whether the problem persists for at least three months are also important when diagnosing and staging CKD.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, a super specialist nephrologist, provides comprehensive evaluation and personalized treatment for patients with kidney disease at different stages.

What Are Kidney Disease Levels?

Kidney disease levels describe the severity of chronic kidney disease and how well the kidneys are filtering blood.

Doctors commonly use eGFR to assess kidney filtration. The eGFR is reported in mL/min/1.73 m².

The major CKD categories are:

CKD Stage	eGFR Range	General Meaning
Stage 1	90 or higher	Normal or high eGFR with evidence of kidney damage
Stage 2	60–89	Mild reduction in kidney function with evidence of kidney damage
Stage 3a	45–59	Mild to moderate reduction
Stage 3b	30–44	Moderate to severe reduction
Stage 4	15–29	Severe reduction
Stage 5	Below 15	Kidney failure range

Important: Stage 1 and Stage 2 CKD cannot be diagnosed from eGFR alone. There must generally be evidence of kidney damage, and the abnormality must persist for at least three months.

Stage 1 Kidney Disease

Stage 1 CKD means the eGFR is 90 or higher, but there is evidence of kidney damage.

Possible evidence may include:

Protein or albumin in the urine
Blood in the urine caused by kidney disease
Abnormal kidney imaging
Structural kidney abnormalities
Certain findings on kidney biopsy

Symptoms

Most people with Stage 1 CKD have no obvious symptoms.

The condition may be discovered through routine:

Blood tests
Urine tests
Blood pressure monitoring
Ultrasound or other imaging

Treatment

The goal at this stage is to identify and manage the cause of kidney damage.

Treatment may involve:

Controlling blood pressure
Managing diabetes
Reducing cardiovascular risk
Treating underlying kidney disease
Managing protein or albumin leakage
Maintaining a healthy lifestyle
Regular kidney monitoring

Early management can help reduce the risk of progression.

Stage 2 Kidney Disease

Stage 2 CKD generally has an eGFR of 60–89, together with evidence of kidney damage that persists for at least three months.

Symptoms

Symptoms may still be absent.

Some patients may have:

Foamy urine
Blood in the urine
Mild swelling
High blood pressure
Abnormal urine test results

However, these symptoms are not specific to Stage 2 CKD.

Treatment

Treatment focuses on protecting kidney function and controlling the underlying cause.

Your nephrologist may recommend:

Blood pressure management
Diabetes control
Treatment for proteinuria or albuminuria
Dietary modifications
Regular kidney function monitoring
Avoiding unnecessary medications that may harm the kidneys

Stage 3 Kidney Disease

Stage 3 represents a more noticeable reduction in kidney filtration and is divided into two categories.

Stage 3a CKD

eGFR: 45–59

Stage 3b CKD

eGFR: 30–44

At this stage, complications become more likely and regular nephrology follow-up becomes particularly important.

Possible Symptoms

Patients may experience:

Fatigue
Weakness
Swelling of the feet or ankles
Changes in urination
Foamy urine
Muscle cramps
Itching
High blood pressure
Difficulty concentrating

Some people can still have very few symptoms.

Possible Complications

Stage 3 CKD may be associated with:

Anemia
Mineral and bone abnormalities
Electrolyte disturbances
High blood pressure
Cardiovascular complications
Increasing protein or albumin in urine

Treatment

Treatment may include:

Blood pressure control
Diabetes management
Management of proteinuria or albuminuria
Treatment of anemia when indicated
Monitoring electrolytes
Individualized dietary advice
Regular eGFR and urine testing
Cardiovascular risk reduction

The objective is to slow further loss of kidney function and prevent complications.

Stage 4 Kidney Disease

Stage 4 CKD is characterized by an eGFR of 15–29, representing severe reduction in kidney function.

At this stage, patients require close medical monitoring and preparation for possible advanced kidney replacement therapy when clinically appropriate.

Symptoms

Symptoms may become more noticeable, including:

Significant fatigue
Swelling
Reduced appetite
Nausea
Itchy skin
Muscle cramps
Changes in urination
Difficulty concentrating
Breathlessness due to fluid overload or anemia

Not every patient develops all of these symptoms.

Treatment

Management may include:

Strict blood pressure control
Diabetes management
Treatment of anemia
Management of mineral and bone disorders
Electrolyte monitoring
Dietary and fluid guidance
Medication adjustment
Regular assessment of kidney function

Preparing for Advanced Kidney Care

Depending on the patient's condition and rate of progression, the nephrologist may discuss:

Dialysis options
Vascular access planning
Peritoneal dialysis
Hemodialysis
Kidney transplantation
Conservative kidney management when appropriate

Stage 4 CKD does not automatically mean that dialysis must begin immediately. The decision to start dialysis depends on the patient's symptoms, complications, fluid status, laboratory abnormalities, nutritional condition, and overall health rather than eGFR alone.

Stage 5 Kidney Disease

Stage 5 CKD generally refers to an eGFR below 15, particularly when this persists and reflects advanced kidney failure.

The kidneys have severely reduced filtration capacity.

Symptoms

Patients may experience:

Severe fatigue
Swelling
Reduced appetite
Nausea and vomiting
Persistent itching
Muscle cramps
Changes in urine output
Difficulty concentrating
Shortness of breath
Sleep problems
Weakness

The severity varies between individuals.

Treatment Options

Depending on the patient's condition, treatment may involve:

Hemodialysis
Peritoneal dialysis
Kidney transplantation
Conservative kidney management
Treatment of complications
Dietary and fluid management

The nephrologist evaluates the entire clinical picture before recommending the appropriate approach.

What Is eGFR and Why Is It Important?

Estimated Glomerular Filtration Rate (eGFR) is an estimate of how effectively the kidneys filter blood.

A lower eGFR generally indicates reduced kidney filtration.

However, one abnormal eGFR result does not automatically establish chronic kidney disease. Doctors may repeat testing and evaluate the result alongside:

Urine albumin
Urine protein
Blood pressure
Previous kidney function results
Medical history
Imaging findings
Other laboratory tests

Persistent abnormalities are important when determining CKD.

What Is Albuminuria?

Albuminuria means that albumin, a type of protein, is present in the urine in an abnormal amount.

A common test used to evaluate this is the Urine Albumin-to-Creatinine Ratio (ACR).

Albuminuria can provide important information about kidney damage and cardiovascular risk, even when eGFR is relatively preserved.

This is why kidney disease staging should not depend on eGFR alone.

Can Kidney Disease Levels Get Worse?

Yes. CKD can progress from one stage to another, although the rate of progression varies considerably between individuals.

Factors that may increase the risk of progression include:

Poorly controlled diabetes
Uncontrolled high blood pressure
Significant protein or albumin leakage
Smoking
Cardiovascular disease
Recurrent acute kidney injury
Certain kidney diseases
Medication-related kidney injury

Early diagnosis and appropriate treatment can help slow progression in many patients.

Can Kidney Disease Levels Improve?

The answer depends on the cause.

Chronic kidney disease is generally considered a long-term condition, but kidney function measurements can sometimes improve or stabilize when a reversible factor is treated.

For example, kidney function may improve when:

Dehydration is corrected
An acute kidney injury is treated
Urinary obstruction is relieved
A medication causing kidney injury is stopped under medical supervision
An infection is appropriately treated

A temporary change in creatinine or eGFR should therefore be evaluated in context rather than immediately interpreted as permanent CKD progression.

How Are Kidney Disease Levels Diagnosed?

At Prabhakar Bhurke Clinic, kidney evaluation may include several investigations.

Blood Tests

These may include:

Serum creatinine
eGFR
Blood urea nitrogen
Electrolytes
Hemoglobin
Blood sugar
Calcium and phosphorus when indicated

Urine Tests

Depending on the clinical situation:

Routine urinalysis
Urine ACR
Protein-to-creatinine ratio
Urine microscopy
Urine culture when infection is suspected

Imaging

Depending on the patient's condition, the nephrologist may recommend:

Kidney ultrasound
CT scan
Other imaging when clinically indicated

Additional Testing

Some patients may require:

Autoimmune testing
Specialized blood tests
Kidney biopsy
Other investigations to identify the underlying cause

Treatment According to Kidney Disease Level

Treatment is individualized rather than based only on the CKD stage.

Early Kidney Disease

The focus is usually on:

Identifying the cause
Controlling diabetes and blood pressure
Managing albuminuria
Reducing cardiovascular risk
Maintaining healthy lifestyle habits
Monitoring kidney function

Moderate Kidney Disease

Management may additionally focus on:

Anemia
Electrolyte abnormalities
Mineral and bone disorders
Dietary modifications
Medication adjustment
Regular nephrology follow-up

Advanced Kidney Disease

Treatment may include:

Managing complications
Preparing for dialysis if required
Evaluating for kidney transplantation
Individualized dietary and fluid management
Discussing conservative kidney management when appropriate

Lifestyle Habits That Support Kidney Health

People with kidney disease should follow advice tailored to their specific condition.

General recommendations may include:

Control blood pressure.
Manage diabetes effectively.
Reduce excessive salt intake.
Maintain a healthy body weight.
Stay physically active as advised.
Avoid smoking.
Avoid unnecessary use of NSAID painkillers.
Take prescribed medicines correctly.
Attend scheduled kidney function tests.
Follow individualized fluid and dietary recommendations.

There is no single kidney diet suitable for every CKD patient. Protein, potassium, phosphorus, and fluid recommendations may change according to kidney function and laboratory results.

When Should You See a Nephrologist?

You should consider specialist evaluation if you have:

Persistently high creatinine
Reduced eGFR
Protein or albumin in urine
Blood in the urine
Persistent swelling
Difficult-to-control blood pressure
Diabetes with abnormal kidney tests
Recurrent kidney stones
Recurrent urinary infections
A family history of kidney disease
Previously diagnosed CKD

Early nephrology care can help identify the cause and establish an appropriate monitoring and treatment plan.

Why Choose Prabhakar Bhurke Clinic?

At Prabhakar Bhurke Clinic, patients receive personalized kidney care from Dr. Sandip Prabhakar Bhurke, a super specialist nephrologist.

The clinic provides:

Comprehensive kidney function evaluation
CKD staging and monitoring
Diagnosis of underlying kidney disorders
Personalized treatment plans
Diabetes and hypertension-related kidney care
Management of kidney disease complications
Dialysis planning and management
Kidney transplant evaluation and guidance
Long-term nephrology follow-up
Patient-centered and evidence-based care

The goal is to detect kidney disease early, slow progression where possible, manage complications, and support better long-term kidney health.

Frequently Asked Questions

How many levels of kidney disease are there?

Chronic kidney disease is commonly divided into five main stages, from Stage 1 through Stage 5. Stage 3 is further divided into Stage 3a and Stage 3b.

What kidney disease level is considered serious?

Stages 4 and 5 represent advanced kidney disease. Stage 3 also requires appropriate monitoring because complications and progression risk may increase.

What eGFR indicates kidney failure?

An eGFR below 15 is generally classified as G5, or kidney failure range, when persistent and clinically consistent with advanced CKD. Treatment decisions should consider the patient's complete clinical condition.

Does Stage 1 kidney disease have symptoms?

Usually, Stage 1 CKD does not cause noticeable symptoms. It is often detected through urine testing, blood tests, or imaging.

Does Stage 3 kidney disease require dialysis?

No. Dialysis is not automatically required in Stage 3 CKD. Many patients are managed with medication, lifestyle measures, monitoring, and treatment of the underlying cause.

Does Stage 4 kidney disease mean dialysis is necessary?

Not necessarily. Stage 4 CKD requires close monitoring and preparation for possible kidney replacement therapy, but dialysis usually begins when clinically indicated based on symptoms and complications rather than eGFR alone.

Can kidney disease be prevented from progressing?

In many patients, progression can be slowed through appropriate treatment of the underlying cause, blood pressure and diabetes control, management of albuminuria, healthy lifestyle habits, and regular nephrology follow-up.

Conclusion

Understanding kidney disease levels helps patients recognize the severity of chronic kidney disease and understand why regular monitoring is important. CKD ranges from Stage 1, where kidney damage may exist despite preserved filtration, to Stage 5, where kidney function is severely reduced. Stage 3 is divided into 3a and 3b according to eGFR.

Importantly, kidney disease staging is not based on eGFR alone. Urine albumin, evidence of kidney damage, underlying cause, duration of the abnormality, symptoms, and associated complications all contribute to proper evaluation.

Early diagnosis and personalized treatment can help slow kidney disease progression and reduce complications. Patients with advanced CKD may eventually require dialysis, kidney transplantation, or conservative kidney management depending on their individual circumstances.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, a super specialist nephrologist, provides comprehensive kidney evaluation, CKD staging, personalized treatment, dialysis planning, kidney transplant evaluation, and long-term kidney care.

Book an Appointment Today

If you have high creatinine, reduced eGFR, protein in the urine, swelling, diabetes, high blood pressure, recurrent kidney problems, or a previous diagnosis of chronic kidney disease, consult the super specialist nephrologist at Prabhakar Bhurke Clinic for a detailed evaluation.

Early specialist care can help identify the cause of kidney disease, determine the appropriate kidney disease level, manage complications, and develop a personalized plan to protect kidney function.

Medical Disclaimer

This article is intended for general educational and informational purposes only. Kidney disease severity and treatment requirements vary from person to person. An eGFR result or symptom alone cannot determine an individual's diagnosis or treatment plan. Medical evaluation, laboratory testing, urine assessment, imaging, medical history, and specialist judgment may be required. Do not start, stop, or change medicines, dialysis, diet, or other treatment without consulting a qualified healthcare professional. If you have severe breathlessness, very low urine output, chest pain, confusion, persistent vomiting, or other serious symptoms, seek urgent medical attention.

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