The kidneys perform several essential functions that keep the body in balance. They filter waste products from the blood, regulate fluid and electrolyte levels, contribute to blood-pressure regulation and support processes involved in red blood-cell production and bone health.

Kidney diseases and disorders include a broad range of conditions that can affect one or both kidneys.

Some kidney problems develop suddenly, while others progress gradually over months or years. Certain conditions mainly affect the kidney's filtering units, while others involve the tubules, blood vessels, urinary drainage system or the overall structure of the kidney.

Because kidney disorders are so diverse, the symptoms, tests and treatments can vary significantly.

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation and management for a wide range of kidney conditions.

What Are the Main Types of Kidney Diseases?

Kidney disorders can be broadly grouped according to how they affect kidney structure or function.

Common categories include:

• Chronic kidney disease

• Acute kidney injury

• Kidney infections

• Kidney stones

• Glomerular diseases

• Diabetic kidney disease

• Hypertensive kidney disease

• Polycystic kidney disease

• Hereditary kidney disorders

• Tubular and interstitial disorders

• Urinary obstruction-related kidney problems

• Kidney failure

• Electrolyte and acid-base disorders

A person can also have more than one kidney-related condition at the same time.

Chronic Kidney Disease

Chronic kidney disease (CKD) occurs when abnormalities of kidney structure or function persist for at least three months.

CKD can develop because of diabetes, high blood pressure, glomerular diseases, inherited disorders, recurrent obstruction and other causes.

Kidney function is commonly assessed using eGFR, while urine albumin can provide information about kidney damage.

CKD is generally classified into stages based on eGFR:

Category	eGFR range
G1	≥90
G2	60–89
G3a	45–59
G3b	30–44
G4	15–29
G5	<15

An eGFR of 60 or higher does not by itself establish CKD. For G1 and G2, evidence of kidney damage must also be present and persistent.

Acute Kidney Injury

Acute kidney injury (AKI) is a sudden decline in kidney function.

Possible causes include:

• Severe dehydration

• Low blood pressure

• Serious infection

• Certain medicines

• Major surgery or illness

• Urinary obstruction

• Kidney inflammation

• Reduced blood flow to the kidneys

AKI can sometimes improve substantially when the underlying cause is identified and treated promptly.

In severe cases, temporary dialysis may be required if complications cannot be controlled through medical treatment.

Kidney Stones

Kidney stones are solid deposits that develop from substances present in urine.

A stone may remain inside the kidney without symptoms or move into the ureter and cause obstruction.

Possible symptoms include:

• Sudden flank pain

• Pain radiating toward the abdomen or groin

• Blood in urine

• Nausea

• Vomiting

• Burning urination

• Urinary urgency

Treatment depends on stone size, location, composition, obstruction and symptoms.

Smaller stones may pass naturally in selected cases, while larger or obstructing stones may require procedures such as ureteroscopy, laser lithotripsy, shock wave lithotripsy or PCNL.

Kidney Infections

A kidney infection, commonly called pyelonephritis, can develop when bacteria infect the upper urinary tract.

Possible symptoms include:

• Fever

• Chills

• Flank or back pain

• Burning urination

• Frequent urination

• Nausea or vomiting

• Cloudy or abnormal-smelling urine

Treatment generally requires appropriate medical assessment and antibiotics when a bacterial infection is diagnosed or strongly suspected.

A kidney infection associated with urinary obstruction, such as an obstructing stone, can become a serious emergency and may require urgent drainage as well as infection treatment.

Glomerular Diseases

The glomeruli are microscopic filtering structures within the kidneys.

Diseases affecting them can cause:

• Protein in urine

• Blood in urine

• Swelling

• High blood pressure

• Declining kidney function

Examples include:

• IgA nephropathy

• Focal segmental glomerulosclerosis

• Membranous nephropathy

• Minimal change disease

• Glomerulonephritis

• Lupus nephritis

Some glomerular diseases require specialized blood and urine testing and, in selected cases, a kidney biopsy.

Treatment varies according to the specific disease and may involve blood-pressure management, kidney-protective therapy or immune-directed treatment.

Diabetic Kidney Disease

Diabetes can damage the kidney's filtering structures over time.

One important early marker is albumin in the urine.

People with diabetes may need periodic assessment of:

• Urine albumin

• Serum creatinine

• eGFR

• Blood pressure

• Blood glucose or HbA1c

Treatment focuses on appropriate diabetes management, blood-pressure control, kidney-protective medications when indicated and reduction of cardiovascular risk.

Not everyone with diabetes develops kidney disease, and early detection can help guide management.

High Blood Pressure and Kidney Disorders

Hypertension and kidney disease are closely connected.

Long-standing high blood pressure can damage the kidneys, while kidney disease can also contribute to elevated blood pressure.

Controlling blood pressure is therefore an important part of kidney protection.

The appropriate blood-pressure target and medication combination should be individualized according to kidney function, albuminuria, age and other health conditions.

Polycystic Kidney Disease

Polycystic kidney disease (PKD) is an inherited condition in which multiple cysts develop in the kidneys.

The most common adult form is autosomal dominant polycystic kidney disease.

Possible complications include:

• Enlarged kidneys

• High blood pressure

• Kidney stones

• Urinary infections

• Blood in urine

• Progressive loss of kidney function

There is no universal cure that removes the underlying genetic cause. Selected patients at risk of rapid progression may be considered for specific disease-modifying treatment.

Regular monitoring is important.

Tubular and Interstitial Kidney Disorders

Not all kidney diseases primarily affect the glomeruli.

The kidney tubules and surrounding interstitial tissue can also be damaged.

Potential causes include:

• Certain medications

• Toxins

• Infections

• Autoimmune conditions

• Metabolic disorders

• Reduced blood supply

• Electrolyte abnormalities

Acute interstitial nephritis is one example of a kidney disorder that can sometimes be related to medications.

Treatment depends on identifying and addressing the underlying cause.

Urinary Obstruction and Kidney Damage

A blockage in the urinary tract can interfere with normal urine drainage.

Possible causes include:

• Kidney or ureteral stones

• Enlarged prostate

• Ureteral narrowing

• Tumors or masses

• Blood clots

• Structural abnormalities

Prolonged obstruction can damage kidney function.

Imaging such as ultrasound or CT may be used to identify obstruction, depending on the clinical situation.

If obstruction occurs together with infection, urgent treatment may be required.

What Symptoms Can Kidney Diseases Cause?

Kidney disease does not always cause noticeable symptoms, particularly during its earlier stages.

When symptoms occur, they may include:

• Swelling of the feet, ankles or face

• Foamy urine

• Blood in urine

• Changes in urine output

• Frequent urination

• Flank or kidney-area pain

• Fatigue

• Nausea

• Poor appetite

• Itching

• Muscle cramps

• Breathlessness

• High blood pressure

These symptoms are not specific to kidney disease. Proper testing is necessary to determine the cause.

Can Kidney Disease Exist Without Symptoms?

Yes.

Some kidney diseases remain silent until kidney function has already been significantly affected.

This is one reason testing is particularly important for people with higher-risk conditions such as:

• Diabetes

• High blood pressure

• Cardiovascular disease

• Family history of kidney disease

• Previous acute kidney injury

• Recurrent kidney stones

• Certain autoimmune diseases

Routine kidney assessment may identify abnormalities before major symptoms develop.

How Are Kidney Diseases Diagnosed?

Kidney diagnosis usually involves combining medical history, examination, laboratory tests and imaging.

Blood Tests

Common tests include:

• Serum creatinine

• eGFR

• Urea

• Sodium

• Potassium

• Bicarbonate

• Hemoglobin

• Calcium

• Phosphorus

The exact tests depend on the suspected condition.

Urine Tests

Urine testing may identify:

• Albumin

• Protein

• Blood

• Infection

• Crystals

• Other abnormalities

A urine albumin-to-creatinine ratio (UACR) can help assess albumin loss.

Imaging

Depending on the problem, doctors may recommend:

• Ultrasound

• CT scan

• MRI

• Other specialized imaging

Imaging can help identify stones, obstruction, cysts, structural abnormalities and changes in kidney size.

Kidney Biopsy

A kidney biopsy may be recommended in selected patients when knowing the exact tissue diagnosis would influence treatment.

It is not necessary for every kidney disorder.

How Are Kidney Diseases Treated?

There is no single medicine or procedure that treats all kidney diseases.

Treatment is determined by the diagnosis.

It may include:

Kidney-Protective Treatment

For selected patients, appropriate medicines can help control blood pressure or reduce albuminuria and protect kidney function.

Treatment of Diabetes and Hypertension

Good management of diabetes and high blood pressure can reduce important risks associated with kidney disease.

Treatment of Infections

Bacterial kidney infections may require appropriate antibiotics.

Stone Treatment

Depending on stone characteristics, treatment may include observation, medicines, shock wave lithotripsy, ureteroscopy, laser treatment or PCNL.

Treatment of Immune-Mediated Kidney Disease

Some glomerular or autoimmune conditions require specialized immune-directed therapy.

Management of Kidney Failure

Advanced kidney failure may require:

• Hemodialysis

• Peritoneal dialysis

• Kidney transplantation

• Conservative kidney management in selected patients

Dialysis is not automatically required because creatinine is high or because someone has a particular CKD stage. The clinical situation and complications are considered.

Can Kidney Diseases Be Reversed?

The answer depends on the specific disorder.

Some acute kidney problems can improve considerably when the underlying cause is treated.

For example, kidney function may recover after certain cases of dehydration, obstruction, medication-related injury or infection.

Established chronic kidney scarring generally cannot simply be reversed.

However, appropriate treatment may slow progression, reduce complications and preserve remaining kidney function.

How Can You Protect Your Kidneys?

Kidney protection depends on the underlying risk factors.

Useful measures may include:

• Keep blood pressure within the target recommended by your doctor.

• Manage diabetes appropriately.

• Avoid unnecessary NSAID use.

• Take prescribed medicines correctly.

• Maintain an appropriate level of physical activity.

• Avoid smoking.

• Limit excessive dietary sodium.

• Maintain a healthy body weight.

• Follow an individualized kidney-friendly diet when advised.

• Stay appropriately hydrated according to your medical condition.

• Attend recommended kidney-function testing.

• Avoid unverified kidney detox or herbal products.

People with CKD should not make major dietary or fluid changes without professional guidance.

When Should You Consult a Nephrologist?

A nephrologist may be appropriate if you have:

• Persistent elevated creatinine

• Reduced eGFR

• Protein or albumin in urine

• Repeated blood in urine

• Difficult-to-control hypertension

• Recurrent kidney stones

• Recurrent kidney infections

• Unexplained swelling

• Electrolyte abnormalities

• Progressive kidney-function decline

• Suspected glomerular disease

• Advanced CKD or kidney failure

Early specialist assessment can help identify the cause and establish a suitable treatment and monitoring plan.

When Is a Kidney Problem an Emergency?

Seek urgent medical attention if kidney-related symptoms are accompanied by:

• Very little or no urine

• Severe breathlessness

• Chest pain

• Confusion

• Severe swelling with breathing difficulty

• Severe flank pain with fever or chills

• Persistent vomiting

• Rapid deterioration in health

An infected urinary obstruction, severe fluid overload, dangerous electrolyte abnormality or acute kidney injury can require urgent treatment.

Kidney Disease Evaluation at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized assessment and management for different kidney diseases and disorders.

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

• Kidney-function assessment

• Creatinine and eGFR monitoring

• Urine protein and albumin evaluation

• Blood-pressure management

• Diabetes-related kidney care

• Kidney stone evaluation

• Assessment of urinary obstruction

• Evaluation of glomerular diseases

• Management of electrolyte and acid-base abnormalities

• Acute kidney injury care

• Chronic kidney disease management

• Dialysis-related evaluation

• Kidney transplant-related care

Treatment is planned according to the underlying diagnosis, kidney-function status and overall health.

Frequently Asked Questions

What are the most common kidney diseases?

Common kidney conditions include chronic kidney disease, acute kidney injury, kidney stones, kidney infections, diabetic kidney disease, hypertensive kidney disease, glomerular disorders, polycystic kidney disease and urinary obstruction.

What are the early signs of kidney disease?

Early kidney disease may have no obvious symptoms. When abnormalities do occur, they can include protein in urine, blood in urine, swelling, changes in urination or high blood pressure.

Can kidney disease be cured?

Some acute kidney conditions can improve or recover when the underlying cause is treated. Established chronic kidney damage is often not completely reversible, but treatment may slow progression and manage complications.

What tests check kidney health?

Common assessments include serum creatinine, eGFR, urinalysis, urine albumin-to-creatinine ratio, blood pressure and, when appropriate, kidney imaging.

Does high creatinine always mean kidney disease?

No. Creatinine can be influenced by muscle mass, hydration, diet, medications and acute illness. A doctor interprets creatinine together with eGFR, previous results and the clinical situation.

Can kidney disease lead to dialysis?

Advanced kidney failure can require dialysis or kidney transplantation, but not every person with kidney disease progresses to dialysis. Treatment depends on the cause, severity and clinical course.

Which doctor treats kidney diseases?

A nephrologist specializes in medical kidney diseases, kidney-function problems, dialysis and transplant medicine. A urologist may be involved when a condition requires surgical treatment of the urinary tract, such as certain stones or obstruction.

Conclusion

Kidney diseases and disorders include a wide range of conditions affecting kidney filtration, structure, blood vessels, tubules or urinary drainage.

Some problems, such as certain cases of acute kidney injury, can improve when treated promptly. Others, including chronic kidney disease, may require long-term monitoring and treatment to preserve remaining kidney function.

Recognizing risk factors, checking kidney function when appropriate and investigating abnormalities such as proteinuria, hematuria, swelling or persistent creatinine elevation can help identify kidney problems earlier.

Treatment should always address the specific diagnosis rather than relying on a single medicine, supplement or home remedy.

For specialist evaluation and individualized management of kidney diseases and disorders, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.

Medical Disclaimer

This article is intended for general educational and informational purposes only and should not be considered a substitute for professional medical diagnosis, treatment or individualized medical advice. Kidney diseases and disorders have many different causes, and symptoms, tests and treatment vary according to the specific condition. Do not start, stop or change prescription medicines, painkillers, supplements, diet or fluid intake based solely on this article. Seek urgent medical attention for very little or no urine, severe breathlessness, chest pain, confusion, severe flank pain with fever, persistent vomiting, severe swelling or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for personalized kidney care.