2nd stage kidney disease, more accurately called CKD stage G2, refers to a mildly decreased estimated glomerular filtration rate (eGFR) between 60 and 89 mL/min/1.73 m².

However, an eGFR in this range does not by itself establish chronic kidney disease.

For a person to be classified as having CKD with G2 kidney function, there must also be evidence of kidney damage or another marker of kidney disease that persists for at least three months. Examples can include persistent albumin in the urine, certain abnormalities on urine testing or structural kidney abnormalities.

This distinction is important because an eGFR of 60–89 can occur in people who do not have CKD.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized evaluation for people with abnormal kidney tests and early-stage kidney disease.

What Does an eGFR of 60 to 89 Mean?

eGFR is an estimate of how effectively the kidneys filter blood.

According to the current CKD classification:

• G1: eGFR ≥90

• G2: eGFR 60–89

• G3a: eGFR 45–59

• G3b: eGFR 30–44

• G4: eGFR 15–29

• G5: eGFR <15

G2 is described as mildly decreased kidney function.

The number should not be interpreted in isolation. Doctors also consider the cause of kidney disease and the amount of albumin in the urine when estimating the risk of progression.

Is Stage 2 Kidney Disease Actually Kidney Failure?

No.

The term “stage 2 kidney disease” can sometimes cause unnecessary fear.

Stage G2 is not kidney failure. Kidney failure is classified in the G5 range, generally when eGFR is below 15 mL/min/1.73 m², although treatment decisions are based on the complete clinical situation.

Stage 2 indicates a relatively early level of kidney impairment when the person also meets the criteria for CKD.

Many people with early CKD can remain stable for a long period with appropriate monitoring and management.

Why Can Kidney Function Be Mildly Reduced?

There are several possible explanations for kidney abnormalities.

Common causes include:

Diabetes

Long-standing high blood glucose can damage the kidney's filtering structures.

High Blood Pressure

Persistent hypertension can damage blood vessels within the kidneys.

Previous Kidney Injury

A previous episode of acute kidney injury may leave persistent kidney abnormalities in some people.

Kidney Stones or Urinary Obstruction

Repeated obstruction or complicated stone disease can affect kidney structure and function.

Glomerular Diseases

Conditions affecting the kidney's filtering units may cause albuminuria, blood in urine or reduced filtration.

Inherited Kidney Disorders

Some genetic conditions can affect kidney structure and function over time.

Other Medical Conditions

Autoimmune diseases, infections, medication-related injury and other disorders can also contribute to kidney damage.

Finding the cause is often more useful than focusing only on the eGFR number.

Does Stage 2 Kidney Disease Cause Symptoms?

Often, there may be no obvious symptoms.

Early kidney disease can remain clinically silent, which means a person may discover it through routine blood or urine testing rather than because of a specific complaint.

When symptoms occur, they may be related to the underlying condition rather than the mildly reduced filtration itself.

Possible findings can include:

• Foamy urine

• Blood in urine

• High blood pressure

• Swelling in selected cases

• Changes associated with kidney stones

• Symptoms related to diabetes or another underlying disease

Severe symptoms such as marked fluid overload or pronounced uremic symptoms are not typical simply because someone has G2 CKD.

Can Stage 2 Kidney Disease Have Protein in Urine?

Yes.

In fact, albuminuria can be an important reason that a person with eGFR 60–89 is classified as having CKD.

The urine albumin-to-creatinine ratio (UACR) is commonly used to assess albumin loss.

KDIGO classifies albuminuria as:

Albuminuria category	UACR
A1	<30 mg/g
A2	30–299 mg/g
A3	≥300 mg/g

The combination of eGFR category and albuminuria category provides more information about CKD risk than eGFR alone.

What Tests Are Used for Stage 2 Kidney Disease?

A nephrologist may use several tests to understand whether CKD is present and what is causing it.

Serum Creatinine and eGFR

Creatinine is used as part of eGFR estimation.

A single eGFR result may not establish chronic kidney disease because kidney function can temporarily change during acute illness, dehydration or other circumstances.

Urine Albumin Testing

UACR can identify albumin leakage from the kidneys.

Urinalysis

A urine examination may detect:

• Blood

• Protein

• Infection

• Other abnormalities

Blood Pressure

Blood pressure measurement is important because hypertension can both contribute to kidney disease and develop as kidney disease progresses.

Blood Glucose or HbA1c

These may be checked when diabetes is present or suspected.

Kidney Imaging

Ultrasound or other imaging may be appropriate when structural kidney disease, stones, cysts or obstruction is suspected.

Additional Tests

Depending on the findings, a nephrologist may recommend autoimmune, metabolic, genetic or other specialized investigations.

Why Is Repeating the Kidney Test Important?

Kidney function should be interpreted over time rather than from one isolated result.

For example, an eGFR of 78 today and 78 repeatedly over an appropriate period may have a different clinical meaning from a result that has fallen progressively from a substantially higher baseline.

CKD requires evidence of kidney abnormality lasting at least three months.

Repeating appropriate tests can therefore help determine:

• Whether the abnormality is persistent

• Whether kidney function is stable

• Whether albuminuria is continuing

• Whether kidney function is declining

• Whether an acute condition has temporarily affected the result

Can Stage 2 Kidney Disease Get Better?

It depends on the underlying problem.

Some factors affecting kidney tests can be reversible. For example, an acute illness or temporary kidney stress may affect kidney function without representing permanent CKD.

Established chronic kidney damage, however, is not necessarily reversible.

The treatment goal is often to:

• Identify the cause

• Control modifiable risk factors

• Reduce ongoing kidney injury

• Manage albuminuria when appropriate

• Monitor kidney function

• Protect cardiovascular health

The earlier the underlying problem is identified, the more opportunities there may be to address modifiable risks.

How Is Stage 2 Kidney Disease Treated?

There is no single medicine for all patients with stage 2 CKD.

Treatment depends on the cause and associated risk factors.

Control Blood Pressure

Maintaining blood pressure within the target recommended by the treating clinician is an important part of kidney protection.

Certain blood-pressure medicines may also reduce albuminuria in appropriate patients.

Manage Diabetes

For people with diabetes, individualized glucose management can help reduce the risk of kidney and cardiovascular complications.

Address Albuminuria

When significant albuminuria is present, the doctor may consider kidney-protective treatment appropriate for the patient's condition.

Avoid Unnecessary Kidney-Harming Medicines

Regular or inappropriate use of certain medicines, including some NSAID painkillers, can be harmful to susceptible kidneys.

Always discuss frequent painkiller use with a healthcare professional.

Treat the Underlying Disease

Glomerular diseases, autoimmune disorders, urinary obstruction, stones and other causes require condition-specific treatment.

Monitor Kidney Function

Regular follow-up helps determine whether the condition is stable or changing.

Stage 2 Kidney Disease Diet

There is no universal stage 2 kidney disease diet that is suitable for every patient.

Dietary recommendations depend on:

• Blood pressure

• Diabetes

• UACR

• Potassium

• Phosphorus

• Body weight

• Overall nutritional status

• Other medical conditions

Reduce Excess Sodium

Avoiding excessive salt can help support blood-pressure control.

Choose a Balanced Diet

A diet emphasizing appropriate portions of vegetables, fruits and minimally processed foods may be suitable for many people, but dietary choices should be individualized if potassium or other restrictions are required.

Avoid Extreme Protein Restriction

People should not severely restrict protein without professional guidance.

The appropriate protein intake depends on kidney function, nutritional needs, age and other health factors.

Be Careful With Supplements

Herbal products and supplements marketed as “kidney cleansers” or kidney detoxes are not automatically safe.

Discuss supplements with your healthcare professional.

Can You Live a Normal Life With Stage 2 Kidney Disease?

Many people with early CKD continue their usual work, family and social activities.

Stage 2 does not automatically mean that dialysis is approaching.

The long-term outlook depends on factors such as:

• Underlying cause

• Albuminuria

• Blood pressure

• Diabetes

• Cardiovascular health

• eGFR trend

• Age

• Other medical conditions

This is why two people with the same eGFR can have very different risk profiles. KDIGO recommends considering cause, GFR and albuminuria together when assessing CKD.

Does Stage 2 Kidney Disease Always Progress?

No.

CKD does not inevitably progress to kidney failure.

Some people remain stable for many years, while others experience gradual loss of kidney function.

Risk assessment should consider the cause of CKD, albuminuria, eGFR trend and other health factors rather than assuming that every stage 2 patient will progress to advanced kidney disease.

Can Stage 2 CKD Lead to Dialysis?

Stage 2 CKD by itself does not mean that dialysis is needed.

Dialysis is generally considered in advanced kidney failure when kidney function and the patient's clinical condition require kidney replacement therapy.

An eGFR of 60–89 is far above the G5 kidney-failure range.

The priority in stage 2 is usually identifying the cause, reducing risk factors and monitoring the kidneys over time.

What Lifestyle Habits Can Protect Kidney Function?

Daily habits can complement medical treatment.

Stay Physically Active

Regular physical activity can support cardiovascular and metabolic health when appropriate for your condition.

Maintain a Healthy Weight

A healthy weight can help with blood pressure and diabetes management.

Avoid Smoking

Smoking increases cardiovascular and overall health risks.

Limit Excess Salt

Reducing excessive sodium can support blood-pressure control.

Take Prescribed Medicines Correctly

Do not stop kidney-protective medicines simply because you feel well.

Attend Follow-Up Visits

Kidney disease can progress without obvious symptoms, so regular monitoring is important.

Who Should Be More Careful About Stage 2 Kidney Disease?

People with certain conditions may have a greater need for kidney monitoring.

These include people with:

• Diabetes

• High blood pressure

• Cardiovascular disease

• Recurrent kidney stones

• Previous acute kidney injury

• Family history of kidney disease

• Persistent protein in urine

• Blood in urine

• Known structural kidney abnormalities

NIDDK identifies diabetes, high blood pressure, heart disease and family history as important CKD risk factors.

When Should You See a Nephrologist?

Specialist evaluation may be useful when:

• eGFR remains reduced

• Albuminuria is persistent or significant

• Kidney function is declining

• Creatinine is increasing

• Urine contains unexplained blood or protein

• Blood pressure is difficult to control

• Kidney stones or obstruction recur

• The cause of kidney abnormalities is unclear

• There is a strong family history of kidney disease

A nephrologist can determine whether the finding represents CKD, identify its possible cause and establish an appropriate monitoring strategy.

Stage 2 Kidney Disease Care at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized assessment and ongoing kidney care.

Depending on the patient's needs, evaluation may include:

• Review of creatinine and eGFR trends

• Urine albumin and protein assessment

• Blood-pressure evaluation

• Diabetes-related kidney assessment

• Investigation of hematuria

• Kidney stone and obstruction evaluation

• Medication review

• Assessment of CKD risk factors

• Monitoring for changes in kidney function

• Long-term kidney-protection planning

The objective is to understand why kidney function is abnormal, rather than treating the eGFR number alone.

Frequently Asked Questions

What is 2nd stage kidney disease?

2nd stage kidney disease generally refers to CKD G2, where eGFR is 60–89 mL/min/1.73 m² along with evidence of kidney damage or another CKD marker persisting for at least three months.

Is stage 2 kidney disease serious?

It is an early CKD category, but it should not be ignored. The long-term risk depends on the underlying cause, albuminuria, eGFR trend and other health conditions.

Is stage 2 kidney disease the same as kidney failure?

No. Stage G2 represents mildly decreased eGFR, whereas kidney failure is classified in the G5 range, generally below an eGFR of 15.

Can stage 2 kidney disease be reversed?

Some temporary factors affecting kidney function can improve. Established chronic kidney damage may not be completely reversible, but appropriate treatment can address modifiable risks and potentially slow progression.

What should eGFR be in stage 2 kidney disease?

The G2 range is 60–89 mL/min/1.73 m². However, eGFR in this range alone does not establish CKD.

Does stage 2 kidney disease require dialysis?

No. Stage 2 CKD does not normally require dialysis. Dialysis is a treatment for kidney failure and is considered according to the patient's overall clinical condition.

What foods should be avoided in stage 2 kidney disease?

There is no universal list of foods that every person with stage 2 CKD must avoid. Sodium, protein, potassium and phosphorus intake should be individualized according to laboratory results, medical conditions and dietary needs.

Can stage 2 kidney disease have no symptoms?

Yes. Early CKD can have few or no noticeable symptoms, which is why blood and urine testing is important in people at risk.

Conclusion

2nd stage kidney disease, or CKD G2, generally corresponds to an eGFR of 60–89 mL/min/1.73 m², but an eGFR in this range does not automatically mean that a person has chronic kidney disease. Evidence of kidney damage or another CKD marker must also be considered and should persist for at least three months.

Stage 2 is not kidney failure and does not mean that dialysis is required. The more important questions are why the kidney abnormality is present, whether albumin is being lost in the urine, and whether kidney function is stable or changing over time.

Blood pressure control, diabetes management, appropriate treatment of albuminuria, healthy lifestyle habits and regular monitoring can all form part of an individualized kidney-care plan.

If you have an eGFR between 60 and 89, persistent protein or albumin in urine, abnormal creatinine or other kidney-related findings, consult a nephrologist to understand what the results mean for you.

For specialist kidney evaluation and long-term kidney care, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and is not a substitute for medical diagnosis, treatment or individualized medical advice. An eGFR of 60–89 mL/min/1.73 m² does not by itself establish chronic kidney disease; CKD classification also considers evidence of kidney damage and chronicity. The appropriate evaluation and treatment depend on the underlying cause, urine albumin, kidney-function trend, medications and overall health. Do not start, stop or change medicines, supplements, diet or fluid intake based solely on this article. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for personalized assessment and treatment.