Membranous nephropathy is a kidney disease in which the filtering units of the kidneys, called glomeruli, become damaged. One of its most noticeable effects can be the leakage of large amounts of protein into the urine. This may result in proteinuria, swelling and nephrotic syndrome.

The condition can behave differently from one person to another. Some patients have relatively stable kidney function, while others may experience persistent protein loss and progressive decline in kidney function. Because of this variation, membranous nephropathy treatment needs to be individualized rather than following one standard treatment for every patient.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides evaluation and management of complex kidney diseases, including proteinuric kidney disorders and membranous nephropathy.

What Causes Membranous Nephropathy?

Membranous nephropathy may be:

• Primary (autoimmune) – commonly associated with antibodies directed against proteins involved in the kidney's filtration barrier.

• Secondary – associated with certain infections, autoimmune diseases, cancers or medications.

Determining whether the disease is primary or secondary is important because treatment can be very different.

Symptoms of Membranous Nephropathy

Some people have no obvious symptoms initially and are diagnosed after routine urine testing.

Possible symptoms include:

• Foamy or frothy urine

• Swelling around the ankles or legs

• Puffiness around the eyes

• Unexplained weight gain from fluid retention

• Tiredness

• Increased blood pressure

• Reduced urine output in more advanced cases

Persistent protein in the urine should be medically evaluated rather than assumed to be harmless.

How Is Membranous Nephropathy Diagnosed?

A nephrologist may use several investigations to understand the condition and assess its severity.

Urine Tests

Urine testing can identify and measure protein loss. A urine albumin-to-creatinine ratio or other protein measurement may be used for monitoring.

Blood Tests

Blood tests may include:

• Serum creatinine

• eGFR

• Serum albumin

• Cholesterol and lipid profile

• Electrolytes

• Relevant autoimmune or infection tests

Anti-PLA2R Antibody Testing

In many patients with suspected primary membranous nephropathy, anti-PLA2R antibody testing can provide useful information about disease activity and treatment planning.

Kidney Biopsy

A kidney biopsy may be recommended in selected patients when the diagnosis or underlying cause needs clarification, or when the clinical picture does not fit the expected pattern.

What Is the Goal of Membranous Nephropathy Treatment?

Treatment aims to:

1. Reduce protein loss through the kidneys.

2. Preserve kidney function.

3. Control swelling and other complications.

4. Reduce the risk of blood clots when appropriate.

5. Address the underlying cause.

6. Prevent progression to advanced chronic kidney disease.

Not every patient requires immediate immunosuppressive treatment.

Treatment for Membranous Nephropathy

1. Monitoring in Lower-Risk Patients

Some patients have a relatively low risk of kidney function decline and may initially be managed with careful observation and supportive treatment.

Regular monitoring may include:

• Urine protein levels

• Serum creatinine

• eGFR

• Serum albumin

• Blood pressure

• Anti-PLA2R antibodies when appropriate

This approach allows treatment to be adjusted if the disease becomes more active.

2. Medicines to Reduce Protein Loss

Medications that control blood pressure and reduce protein leakage may be an important part of supportive treatment.

Depending on the patient's condition, a nephrologist may consider medicines that act on the renin-angiotensin system, such as an ACE inhibitor or ARB.

These medicines should only be used under medical supervision because kidney function and potassium levels may need monitoring.

3. SGLT2 Inhibitors in Selected Patients

SGLT2 inhibitors are kidney-protective medicines used in appropriate patients with certain chronic kidney diseases. Whether they are suitable for an individual with membranous nephropathy depends on kidney function, diabetes status and other clinical factors.

4. Managing Swelling

Significant fluid retention may require dietary sodium restriction and diuretic medicines.

The type and dose of diuretic depend on the severity of edema, kidney function, blood pressure and fluid status.

5. Cholesterol Management

Nephrotic syndrome can be associated with elevated cholesterol levels. A nephrologist may recommend lifestyle measures and lipid-lowering treatment when clinically appropriate.

6. Immunosuppressive Treatment

Patients with a higher risk of progressive kidney disease may require immunosuppressive therapy.

Depending on the clinical situation, treatment may involve medicines such as:

• Rituximab

• Cyclophosphamide with corticosteroids

• Calcineurin inhibitors such as tacrolimus or cyclosporine

The choice depends on disease severity, kidney function, antibody status, complications, previous treatment and individual risk factors.

Immunosuppressive medicines should never be started without specialist evaluation, because they can have significant side effects and may not be appropriate for every patient.

Can Membranous Nephropathy Go Into Remission?

Yes. Some patients experience spontaneous remission, while others achieve remission following treatment.

Remission generally refers to a substantial reduction or disappearance of proteinuria, accompanied by stable or improved kidney function.

Because relapse can occur, continued follow-up remains important even after improvement.

Why Proteinuria Needs Attention

Persistent protein loss is more than a laboratory abnormality. Significant proteinuria can be associated with progressive kidney damage and complications of nephrotic syndrome.

Reducing proteinuria is therefore an important component of long-term kidney protection.

Risk of Blood Clots

Patients with nephrotic syndrome can have an increased tendency to develop blood clots because of changes in blood proteins involved in coagulation.

The decision to use preventive anticoagulation depends on factors such as:

• Serum albumin

• Severity of proteinuria

• Individual clotting risk

• Bleeding risk

• Other medical conditions

Blood-thinning medication should never be started without medical advice.

Diet and Lifestyle During Treatment

Lifestyle management supports medical treatment.

Depending on kidney function and laboratory results, patients may be advised to:

• Reduce excess dietary sodium.

• Follow an individualized protein plan.

• Maintain a healthy body weight.

• Control blood pressure.

• Avoid smoking.

• Stay physically active as medically appropriate.

• Avoid unnecessary medicines that may harm the kidneys.

Fluid intake should also be individualized, particularly when significant swelling or reduced kidney function is present.

How Often Should Kidney Function Be Monitored?

There is no single follow-up schedule for everyone. Monitoring depends on disease activity, proteinuria, kidney function, medication use and treatment response.

During active treatment, doctors may monitor kidney function and urine protein more frequently. Once the condition is stable, follow-up intervals may be adjusted.

When Should You See a Nephrologist?

A specialist evaluation is particularly important when there is:

• Persistent protein in urine

• Nephrotic-range proteinuria

• Significant swelling

• Low serum albumin

• Unexplained decline in eGFR

• Abnormal anti-PLA2R antibody results

• Suspected autoimmune kidney disease

• Recurrent or persistent blood in urine

Early nephrology assessment can help determine whether observation, supportive treatment or immunosuppressive therapy is appropriate.

Membranous Nephropathy Care at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke provides specialized evaluation and long-term management of proteinuric kidney diseases.

Care may include:

• Evaluation of persistent proteinuria

• Assessment of nephrotic syndrome

• Kidney function monitoring

• Anti-PLA2R assessment when appropriate

• Evaluation for secondary causes

• Medication planning

• Immunosuppressive treatment when indicated

• Management of edema and blood pressure

• Monitoring for treatment-related complications

• Long-term CKD risk assessment

The treatment plan is customized according to the patient's kidney function, proteinuria, underlying cause and overall health.

Frequently Asked Questions

Is membranous nephropathy curable?

Some patients achieve complete or partial remission. The course varies considerably, so regular monitoring is important.

Does everyone with membranous nephropathy need steroids?

No. Some patients may be managed initially with supportive treatment and observation, while higher-risk patients may require immunosuppressive therapy.

What is the role of anti-PLA2R antibodies?

Anti-PLA2R antibodies can help support the diagnosis of primary membranous nephropathy and may be useful for monitoring disease activity and treatment response in appropriate patients.

Can membranous nephropathy cause kidney failure?

In some patients, particularly those with persistent severe proteinuria or declining kidney function, membranous nephropathy can progress to advanced chronic kidney disease. Early risk assessment and appropriate treatment are important.

Can protein in urine disappear with treatment?

Yes. Proteinuria can decrease substantially or disappear in patients who achieve partial or complete remission.

Conclusion

Membranous nephropathy treatment is based on the patient's risk of kidney function decline, amount of proteinuria, underlying cause and overall health. Supportive kidney-protective treatment is important, while selected higher-risk patients may benefit from immunosuppressive therapy.

Accurate diagnosis, regular monitoring and timely specialist care can help manage proteinuria, protect kidney function and reduce complications.

For personalized evaluation of membranous nephropathy and other complex kidney disorders, patients can consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is provided for general educational and informational purposes only and does not constitute medical advice, diagnosis or treatment. Membranous nephropathy can have different causes and levels of severity, and treatment must be individualized by a qualified nephrologist. Immunosuppressive medicines, steroids, diuretics, anticoagulants and other prescription treatments should not be started, stopped or changed without medical supervision. Do not rely on online information to determine whether you need a kidney biopsy or immunosuppressive treatment. Seek prompt medical attention for severe breathlessness, chest pain, markedly reduced urine output, sudden severe swelling or other serious symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for an appropriate evaluation and treatment plan.