Protein in urine, medically known as proteinuria, can be an early indicator that the kidneys' filtering system is not working as expected. Healthy kidneys normally retain most proteins in the bloodstream. When the filtration barrier is damaged, proteins may pass into urine.

Finding protein in a urine test does not always mean that a person has permanent kidney disease. Temporary proteinuria can occur during fever, strenuous exercise, dehydration or an acute illness. Persistent proteinuria, however, requires further evaluation because it may signal kidney damage. (NIDDK)

The best treatment for proteinuria depends on its cause, the amount of protein being lost, kidney function and the person's overall health. Treatment may involve controlling blood pressure, managing diabetes, using kidney-protective medicines when appropriate, treating a specific kidney disease and monitoring urine protein over time.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides evaluation and individualized management for patients with proteinuria and other kidney-function abnormalities.

Which Treatment Is Best for Proteinuria?

There is no single medicine that is suitable for everyone with protein in urine. Doctors first determine whether the protein loss is temporary, related to an underlying condition or associated with persistent kidney damage.

Treatment may include:

• Managing high blood pressure

• Improving diabetes control

• Prescribing an ACE inhibitor or ARB when indicated

• Considering an SGLT2 inhibitor for eligible patients with chronic kidney disease

• Treating specific inflammatory or immune-related kidney diseases

• Reducing excessive dietary sodium

• Adjusting protein intake to individual needs

• Monitoring kidney function and urine albumin

For selected patients with chronic kidney disease, medicines that reduce albuminuria can also help lower the risk of kidney disease progression. Treatment choices should follow clinical assessment and current guidelines. (KDIGO 2024 CKD Guideline)

Step One: Confirm the Protein in Urine

Before deciding on treatment, a doctor needs to establish whether proteinuria is present and determine its severity.

Urine Albumin-to-Creatinine Ratio

The urine albumin-to-creatinine ratio (UACR) measures albumin in a urine sample relative to creatinine. It is widely used to detect and monitor albuminuria.

The commonly used categories for adults are:

These categories help assess kidney risk, but the results must be interpreted alongside eGFR, medical history and other findings. A single abnormal result may need to be repeated, because temporary conditions can affect urine albumin. (NIDDK)

Urine Routine Examination

Urinalysis can identify protein, blood and other abnormalities that may help explain the cause.

Blood Tests for Kidney Function

Serum creatinine and estimated glomerular filtration rate (eGFR) help assess how well the kidneys are filtering blood. Other tests may be required depending on the suspected condition.

Additional Investigations

If significant protein loss or a specific kidney disease is suspected, the doctor may recommend blood tests, kidney imaging or, in selected cases, a kidney biopsy.

Medicines Used to Reduce Proteinuria

The choice of medicine depends on the underlying diagnosis, blood pressure, kidney function, potassium level and other health conditions.

ACE Inhibitors and ARBs

Angiotensin-converting enzyme inhibitors (ACE inhibitors) and angiotensin receptor blockers (ARBs) are commonly used in appropriate patients with chronic kidney disease and increased albuminuria.

These medicines can lower blood pressure and reduce protein leakage through the kidney filters. They are particularly important for many patients with diabetes, hypertension and albuminuria.

However, they are not suitable for everyone. A clinician may need to monitor blood pressure, serum creatinine and potassium after starting treatment or changing the dose. ACE inhibitors and ARBs should not routinely be combined with each other. (KDIGO 2024 CKD Guideline)

SGLT2 Inhibitors

Sodium-glucose cotransporter-2 (SGLT2) inhibitors can provide kidney protection for eligible people with chronic kidney disease, including some patients without diabetes.

Whether one of these medicines is appropriate depends on eGFR, urine albumin, diabetes status, heart conditions and other clinical factors. They are not a universal treatment for every abnormal urine protein result. (KDIGO 2024 CKD Guideline)

Other Kidney-Protective Medicines

Selected adults with type 2 diabetes and chronic kidney disease may benefit from additional medicines, such as a nonsteroidal mineralocorticoid receptor antagonist, when eligibility criteria are met and potassium can be monitored.

These treatments require individualized prescribing. They should not be started solely because a urine test shows protein.

Treatment for Specific Kidney Diseases

If proteinuria is caused by an immune-related or inflammatory kidney disease, treatment may need to target that condition. Depending on the diagnosis, specialist-directed therapy may include immunosuppressive medicines.

Such medicines are not appropriate for all patients with proteinuria and should only be used after proper assessment.

Proteinuria Treatment When Diabetes Is the Cause

Diabetes can damage the kidney's filtering structures over time, allowing albumin to leak into urine.

For patients with diabetic kidney disease, treatment may involve:

• Maintaining blood glucose within individualized targets

• Controlling blood pressure

• Using kidney-protective medicines when indicated

• Monitoring UACR and eGFR

• Managing cholesterol and cardiovascular risk

• Following an appropriate dietary plan

The treatment plan should be reviewed regularly because kidney function and medication needs can change over time.

Protein in Urine Due to High Blood Pressure

Long-standing high blood pressure can damage small blood vessels in the kidneys. Kidney disease can also make blood pressure more difficult to control.

When hypertension contributes to proteinuria, controlling blood pressure is an important part of treatment. ACE inhibitors or ARBs may be appropriate for selected patients, especially when albuminuria is present.

The blood pressure target and medicine choice should be individualized rather than based on a single reading.

What If Proteinuria Is Caused by Glomerular Disease?

The glomeruli are tiny filtering structures inside the kidneys. Diseases affecting these structures can cause proteinuria, sometimes accompanied by blood in urine, swelling or reduced kidney function.

Examples include certain forms of glomerulonephritis, IgA nephropathy and other immune-related conditions.

Treatment depends on the specific disease and its severity. Some patients need supportive kidney-protective treatment, while others may require additional specialist-directed therapy.

A kidney biopsy may be recommended when the result is likely to clarify the diagnosis or guide treatment.

Can Proteinuria Be Treated Naturally?

Lifestyle changes can support kidney health and complement medical treatment, but there is no universal natural remedy proven to eliminate proteinuria in every patient.

Helpful measures may include:

Reduce Excess Sodium

Excessive salt intake can worsen high blood pressure and fluid retention. Reducing sodium may support blood pressure management and kidney protection.

Follow an Appropriate Protein Intake

Very high protein intake may be unsuitable for some people with chronic kidney disease. However, excessive protein restriction can also cause nutritional problems.

The right amount depends on kidney function, nutritional status, age and other medical needs.

Maintain a Healthy Weight

Weight management can help improve blood pressure, metabolic health and diabetes control.

Avoid Smoking

Smoking increases cardiovascular risk and can contribute to poorer overall kidney health.

Avoid Unverified Supplements

Herbal preparations and products marketed as kidney cleansers are not proven treatments for persistent proteinuria. Some may interact with medicines or harm kidney function.

Lifestyle measures should complement, not replace, an appropriate medical treatment plan.

Can Drinking More Water Reduce Protein in Urine?

Not necessarily.

Drinking enough fluid is important, but excessive water intake does not reliably reduce proteinuria or repair damaged kidney filters.

People with advanced kidney disease, heart failure or prescribed fluid restrictions may need to limit fluid intake. Follow your clinician's advice rather than trying to treat proteinuria by drinking large amounts of water.

How Long Does Proteinuria Take to Improve?

The timeline depends on the cause and severity.

Temporary proteinuria may resolve after a fever, acute illness or strenuous exercise has passed. Persistent proteinuria associated with chronic kidney disease may require long-term treatment and monitoring.

Some patients experience a reduction in urine albumin after starting appropriate therapy, while others continue to have proteinuria despite treatment.

Doctors assess the trend in UACR, eGFR, blood pressure and other results to determine whether the treatment plan is working.

Can Proteinuria Be Reversed?

Sometimes, particularly when the cause is temporary or treatable.

For example, proteinuria associated with a short-lived illness may resolve, while protein loss related to certain kidney diseases may improve with appropriate treatment.

In established chronic kidney disease, proteinuria may persist even when treatment is effective. The goal may then be to reduce albumin leakage, preserve kidney function and lower the risk of further complications.

Persistent proteinuria does not automatically mean that kidney failure is inevitable. Its significance depends on the underlying cause, severity, duration and response to treatment.

Signs That Proteinuria Needs Medical Attention

Proteinuria may not cause noticeable symptoms, particularly in its early stages.

However, significant protein loss may be associated with:

• Foamy urine that persists

• Swelling around the eyes

• Swollen feet or ankles

• Unexplained weight gain from fluid retention

• High blood pressure

• Abnormal creatinine or eGFR results

Seek prompt medical evaluation if these symptoms develop. Severe breathlessness, chest pain, confusion or very little or no urine requires urgent medical assessment.

How Is Treatment Success Monitored?

Reducing urine protein is one part of kidney care. Doctors also need to check whether kidney function remains stable and whether treatment is causing side effects.

Monitoring may include:

• Repeat UACR or other urine protein measurements

• Serum creatinine and eGFR

• Blood pressure

• Potassium and other electrolytes

• Blood glucose or HbA1c when relevant

• Assessment of swelling and other symptoms

• Review of prescribed medicines

ACE inhibitors, ARBs and some other kidney-protective medicines require laboratory monitoring. Do not stop or change them independently because of a single test result.

Proteinuria Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized evaluation and management for patients with proteinuria and related kidney conditions.

Depending on the clinical situation, assessment may include:

• Reviewing urine protein and UACR results

• Evaluating creatinine and eGFR

• Assessing blood pressure and diabetes

• Investigating possible glomerular disease

• Reviewing medicines and supplements

• Evaluating swelling or other kidney-related symptoms

• Planning appropriate kidney-protective treatment

• Monitoring response to treatment over time

The aim is to identify the cause of proteinuria, reduce avoidable risks and protect kidney function wherever possible.

Frequently Asked Questions

What is the best treatment for proteinuria?

The best treatment depends on the cause. It may involve blood pressure control, diabetes management, ACE inhibitors or ARBs, SGLT2 inhibitors for eligible patients, or specific treatment for an underlying kidney disease.

Which medicine reduces protein in urine?

ACE inhibitors and ARBs can reduce albuminuria in appropriate patients. SGLT2 inhibitors and certain additional medicines may also benefit selected people with chronic kidney disease. The correct choice depends on diagnosis, kidney function, potassium and other health factors.

Can protein in urine be cured permanently?

Some temporary causes resolve, and some kidney conditions respond well to treatment. Proteinuria caused by chronic kidney damage may persist and require ongoing management.

Is proteinuria always a sign of kidney disease?

No. Temporary proteinuria can occur during fever, strenuous exercise, dehydration or acute illness. Persistent proteinuria should be investigated for kidney disease and other causes.

Can proteinuria be reduced without medicine?

Lifestyle changes, such as reducing excess sodium, maintaining a healthy weight and managing diabetes and blood pressure, may help. However, some causes require prescription treatment, so lifestyle changes alone may not be sufficient.

Does proteinuria mean dialysis will be needed?

No. Proteinuria is a marker that can indicate kidney damage and increased risk, but it does not automatically mean that dialysis will be required. Risk depends on the cause, the amount and persistence of protein loss, eGFR and other factors.

How often should protein in urine be checked?

The schedule depends on the amount of protein, kidney function, diagnosis and treatment. Your doctor may repeat testing to confirm an abnormal result and then monitor it at intervals appropriate to your risk.

Conclusion

The best treatment for proteinuria is the treatment that addresses its underlying cause and helps protect the kidneys over time. A positive urine protein test should not be ignored, but it also does not automatically mean permanent kidney failure.

Urine albumin testing, kidney-function assessment and evaluation of blood pressure, diabetes and other medical conditions help guide treatment. Depending on the diagnosis, management may include kidney-protective medicines, lifestyle changes, specific treatment for kidney disease and regular laboratory monitoring.

If protein in urine persists or appears alongside swelling, high blood pressure or abnormal kidney-function results, consult a nephrologist for an individualized treatment plan.

For specialist assessment of proteinuria and kidney health, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and does not replace professional medical advice, diagnosis or treatment. Proteinuria has several possible causes, and treatment depends on the underlying condition, kidney function, blood pressure, laboratory findings and overall health. Medicines such as ACE inhibitors, ARBs, SGLT2 inhibitors and immunosuppressive treatments are appropriate only for selected patients and may require monitoring. Do not start, stop or change prescription medicines, supplements, diet or fluid intake based solely on this article. Seek urgent medical care for severe breathlessness, chest pain, confusion, very little or no urine or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for personalized evaluation and treatment.