Kidney failure occurs when the kidneys can no longer perform their functions adequately to maintain the body's internal balance.

The kidneys remove waste products from the blood, regulate water and electrolytes, help control blood pressure and contribute to red blood cell production and bone-mineral balance.

When kidney function falls significantly, several kidney failure problems can develop. These may involve fluid accumulation, abnormal potassium or acid levels, anemia, changes in urination, nutritional problems and symptoms caused by accumulation of waste products.

Kidney failure can develop suddenly, as in acute kidney injury, or progress over time because of chronic kidney disease.

The treatment depends on the cause, severity, speed of progression and complications.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized evaluation and management for kidney failure and advanced kidney disease.

What Happens When the Kidneys Start Losing Function?

Healthy kidneys continuously filter the blood and help maintain a stable internal environment.

As kidney function declines:

Reduced filtration → waste accumulation → fluid and electrolyte imbalance → possible kidney failure complications

The effects vary considerably between patients.

Some people with substantial reduction in kidney function may have few symptoms initially, while others may develop significant complications.

This is why kidney-function testing and clinical monitoring are important.

Major Causes of Kidney Failure

Kidney failure can result from many different conditions.

Diabetes

Long-term diabetes can damage the kidney's small blood vessels and filtering structures.

Diabetic kidney disease is an important cause of chronic kidney disease and kidney failure.

High Blood Pressure

Persistent uncontrolled hypertension can damage kidney blood vessels over time.

Kidney disease can also make blood pressure more difficult to control, creating a cycle that requires careful management.

Acute Kidney Injury

A sudden reduction in kidney function can occur because of:

• Severe dehydration

• Serious infection

• Low blood pressure

• Certain medications

• Urinary obstruction

• Major surgery or severe illness

• Other medical conditions

Some cases of acute kidney injury can improve substantially when the cause is treated.

Glomerular Kidney Diseases

Diseases affecting the kidney's filtering units can cause:

• Proteinuria

• Blood in urine

• Swelling

• Declining kidney function

Examples include glomerulonephritis and certain immune-mediated kidney diseases.

Urinary Obstruction

A blockage in urine flow can impair kidney function.

Possible causes include:

• Kidney stones

• Enlarged prostate

• Ureteral narrowing

• Masses

• Structural abnormalities

Prolonged obstruction may cause permanent kidney damage.

Inherited Kidney Disorders

Conditions such as polycystic kidney disease can gradually affect kidney structure and function.

Patients with inherited kidney disorders may require long-term monitoring and specialist care.

Acute Kidney Failure vs Chronic Kidney Failure

Understanding whether kidney failure is acute or chronic is essential.

Acute Kidney Injury

AKI develops over a short period.

Potentially reversible causes include dehydration, infection, obstruction and certain medication-related injuries.

Treatment focuses on correcting the underlying problem and managing complications.

Dialysis may sometimes be temporarily required in severe cases.

Chronic Kidney Disease

CKD develops over a longer period and may progressively reduce kidney function.

Causes include diabetes, hypertension, inherited disorders and chronic glomerular disease.

Established kidney scarring generally cannot simply be reversed, but treatment may slow progression and manage complications.

What Are the Symptoms of Kidney Failure?

Symptoms vary according to the degree and speed of kidney-function decline.

Possible symptoms include:

• Persistent fatigue

• Loss of appetite

• Nausea

• Vomiting

• Swelling of the feet or face

• Reduced urine output

• Changes in urination

• Foamy urine

• Itching

• Muscle cramps

• Weakness

• Difficulty concentrating

• Sleep disturbances

• Breathlessness

Some patients may have few symptoms despite significant kidney dysfunction.

Swelling and Fluid Retention

When the kidneys cannot remove enough sodium and water, fluid may accumulate.

Swelling may appear around:

• Feet

• Ankles

• Legs

• Hands

• Face

In severe cases, excess fluid can enter the lungs and contribute to breathlessness.

Fluid management should be individualized because excessive fluid intake can be harmful in advanced kidney disease.

Changes in Urine

Kidney failure problems may involve changes in urine quantity or appearance.

Possible findings include:

• Reduced urine volume

• Very little or no urine in severe situations

• Foamy urine

• Blood in urine

• Increased nighttime urination in some kidney conditions

Urine changes have many possible causes and should be interpreted alongside other findings.

Waste Buildup and Uremic Symptoms

When kidney filtration becomes severely impaired, waste products can accumulate.

This may contribute to symptoms such as:

• Nausea

• Loss of appetite

• Vomiting

• Itching

• Extreme tiredness

• Difficulty concentrating

• Drowsiness

• Confusion

Severe symptoms attributable to kidney failure may require urgent medical assessment and, in selected situations, kidney replacement therapy.

Electrolyte Problems in Kidney Failure

The kidneys help regulate electrolytes.

Advanced kidney dysfunction can therefore lead to abnormalities involving:

• Potassium

• Sodium

• Bicarbonate

• Calcium

• Phosphorus

Some abnormalities, particularly severe potassium elevation, can become dangerous because they may affect the heart.

Regular blood testing is important when kidney function is significantly reduced.

Kidney Failure and Anemia

The kidneys produce erythropoietin, a hormone involved in red blood cell production.

As chronic kidney disease progresses, reduced erythropoietin production can contribute to anemia.

Anemia may cause:

• Fatigue

• Weakness

• Reduced exercise tolerance

• Breathlessness

Doctors may investigate the cause of anemia and provide appropriate treatment when indicated.

How Is Kidney Failure Diagnosed?

Diagnosis involves more than one blood-test result.

Serum Creatinine

Creatinine is a waste product that is commonly measured to assess kidney filtration.

A high creatinine can indicate reduced kidney filtration but may also be influenced by other factors.

eGFR

The estimated glomerular filtration rate helps quantify kidney filtration and is useful for classifying chronic kidney disease.

Urine Testing

Urine testing may identify:

• Protein

• Albumin

• Blood

• Infection

• Other abnormalities

Electrolyte Testing

Blood tests can assess potassium, sodium, bicarbonate and other parameters.

Imaging

Ultrasound or other imaging may be recommended to evaluate:

• Kidney structure

• Kidney size

• Urinary obstruction

• Stones

• Other abnormalities

Understanding Kidney Failure Stages

Chronic kidney disease is commonly categorized using eGFR together with evidence of kidney damage when applicable.

CKD Category	eGFR
G1	90 or higher
G2	60–89
G3a	45–59
G3b	30–44
G4	15–29
G5	Below 15

An important point is that G1 and G2 do not by themselves establish CKD. Evidence of kidney damage or another qualifying abnormality persisting for at least three months is generally required.

G5 represents kidney failure range, but dialysis is not automatically started solely because eGFR is below a particular number.

The clinical picture and complications matter.

What Complications Can Kidney Failure Cause?

Advanced kidney dysfunction can affect multiple body systems.

Possible complications include:

• Fluid overload

• Hyperkalemia

• Metabolic acidosis

• Anemia

• Mineral and bone abnormalities

• High blood pressure

• Nutritional problems

• Cardiovascular complications

• Uremic symptoms

Regular medical follow-up helps identify and manage these problems.

Can Kidney Failure Be Treated?

Treatment depends on whether the kidney problem is acute or chronic.

For potentially reversible acute kidney injury, treatment may include:

• Correcting dehydration

• Treating infection

• Relieving urinary obstruction

• Reviewing medications

• Managing blood pressure

• Correcting electrolyte abnormalities

For chronic kidney disease, treatment may focus on:

• Controlling blood pressure

• Managing diabetes

• Reducing abnormal albumin loss when appropriate

• Treating anemia and mineral abnormalities

• Avoiding unnecessary kidney-harming medicines

• Managing cardiovascular risk

• Monitoring kidney function

When Is Dialysis Considered?

Dialysis is a form of kidney replacement therapy.

It may be needed when severe kidney dysfunction results in complications that cannot be adequately controlled with medical treatment.

Potential indications include:

• Refractory severe hyperkalemia

• Severe metabolic acidosis

• Fluid overload causing significant breathing problems

• Uremic complications

• Certain toxin or medication poisonings

• Severe kidney failure with clinically significant complications

There is no single creatinine level that automatically determines the need for dialysis.

Types of Kidney Replacement Therapy

Hemodialysis

Blood passes through a dialysis filter to remove waste and excess fluid.

Peritoneal Dialysis

The peritoneal membrane inside the abdomen is used to help remove waste and fluid through dialysis solution.

Kidney Transplantation

For appropriately selected patients with kidney failure, transplantation can provide functioning kidney tissue from a donor.

Conservative Kidney Management

Some patients may choose comprehensive non-dialysis management depending on their overall health, medical circumstances and personal goals.

These options should be discussed with a nephrologist.

Can Kidney Failure Be Reversed?

The answer depends on the cause.

Acute kidney injury may improve when the underlying cause is treated promptly.

For example, kidney function may recover after appropriate treatment of dehydration, infection or urinary obstruction.

Chronic kidney failure caused by established kidney scarring generally cannot simply be reversed.

However, appropriate treatment can help preserve remaining kidney function and manage complications.

Diet and Lifestyle With Kidney Failure

Dietary requirements change as kidney function declines.

Depending on laboratory results and treatment, a healthcare professional may advise adjustments to:

• Sodium

• Protein

• Potassium

• Phosphorus

• Fluid intake

There is no universal kidney-failure diet suitable for everyone.

Patients receiving dialysis may have different dietary and fluid requirements from patients who are not yet on dialysis.

Avoid extreme diets, supplements or herbal kidney remedies without professional guidance.

Medicines and Kidney Failure

Medication doses often need careful review when kidney function is reduced.

Some medicines are removed through the kidneys and may accumulate when filtration declines.

Other medicines may affect potassium, blood pressure or fluid balance.

Patients should provide their doctor with a complete list of:

• Prescription medicines

• Over-the-counter medicines

• Painkillers

• Vitamins

• Supplements

• Herbal products

Never change essential medicines independently.

How Can Kidney Failure Progression Be Reduced?

When chronic kidney disease is present, several measures may help protect remaining kidney function.

These can include:

• Maintaining appropriate blood-pressure control

• Managing diabetes

• Treating proteinuria when indicated

• Avoiding unnecessary NSAID use

• Following an individualized diet

• Maintaining a healthy weight when appropriate

• Avoiding tobacco

• Taking prescribed medicines consistently

• Attending regular kidney-function monitoring

The appropriate treatment plan varies according to the cause and stage of kidney disease.

When Should Kidney Failure Problems Be Treated as an Emergency?

Seek urgent medical attention for:

• Very little or no urine

• Severe breathlessness

• Chest pain

• Confusion or reduced consciousness

• Persistent vomiting

• Severe swelling with breathing difficulty

• Severe weakness

• Rapidly worsening symptoms

These signs may indicate serious kidney or systemic complications.

Kidney Failure 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 kidney-function decline and kidney failure.

Depending on the patient's condition, care may include:

• Kidney-function assessment

• Creatinine and eGFR interpretation

• Urine protein and albumin evaluation

• Electrolyte monitoring

• Blood-pressure management

• Acute kidney injury evaluation

• Chronic kidney disease management

• Medication review

• Dialysis assessment

• Hemodialysis and peritoneal dialysis-related care

• Kidney transplant evaluation when appropriate

• Management of complications of advanced kidney disease

Treatment decisions are based on the underlying diagnosis, kidney-function trend, complications and overall health.

Frequently Asked Questions

What are the main kidney failure problems?

Common problems include fluid retention, electrolyte abnormalities, anemia, high blood pressure, waste buildup, nutritional issues and complications affecting other organs.

What is the first warning sign of kidney failure?

There is no single first symptom. Kidney disease may initially produce no noticeable symptoms and may first be detected through creatinine, eGFR or urine abnormalities.

Does high creatinine mean kidney failure?

Not necessarily. Creatinine can increase because of acute kidney injury, dehydration, medications, muscle-related factors and other conditions. It must be interpreted in context.

Can kidney failure be cured?

Some cases of acute kidney injury can recover significantly when the cause is treated. Established chronic kidney failure generally cannot be completely reversed, but treatment can manage complications and preserve remaining kidney function.

Does kidney failure always require dialysis?

No. Dialysis is considered when kidney dysfunction causes serious complications that cannot be adequately controlled through medical treatment. A single creatinine or eGFR value does not automatically determine the need for dialysis.

Can kidney failure patients drink more water?

Not necessarily. Fluid needs depend on kidney function, urine output, heart health, medications and whether the person is receiving dialysis. Excessive fluid intake can be harmful in advanced kidney failure.

Which doctor treats kidney failure?

A nephrologist specializes in kidney disease, kidney failure, dialysis management and medical kidney care. A transplant team may also be involved when kidney transplantation is being considered.

Conclusion

Kidney failure problems can affect fluid balance, electrolytes, blood pressure, blood counts, nutrition and the body's ability to remove waste.

Kidney failure may develop suddenly because of acute kidney injury or gradually as a consequence of chronic kidney disease. Identifying the underlying cause is essential because some acute kidney problems can improve with timely treatment, while established chronic kidney damage requires long-term management.

Creatinine, eGFR, urine testing, electrolyte measurements, blood pressure and imaging can help doctors assess kidney function and identify complications.

When kidney function becomes severely impaired, treatment options may include medical management, hemodialysis, peritoneal dialysis, kidney transplantation or comprehensive conservative kidney management, depending on the patient's circumstances.

If you have abnormal kidney-function tests, reduced urine output, persistent swelling, worsening symptoms or a known kidney condition, specialist evaluation can help determine the appropriate next step.

For individualized kidney care, Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic provides specialist nephrology evaluation and management for kidney disease and kidney failure.

Medical Disclaimer

This article is intended for general educational and informational purposes only and should not be considered a substitute for medical diagnosis, treatment or individualized medical advice. Kidney failure can have many causes, and the appropriate treatment depends on the underlying condition, kidney-function measurements, symptoms, complications and overall health. A single creatinine or eGFR value does not automatically determine whether dialysis is required. Do not start, stop or change medicines, supplements, painkillers, diet or fluid intake based solely on this article. Seek urgent medical attention for very little or no urine, severe breathlessness, chest pain, confusion, persistent vomiting, severe swelling with breathing difficulty or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for personalized evaluation and treatment.