The kidneys are vital organs that continuously filter waste and excess fluid from the blood. They also help regulate blood pressure, maintain electrolyte and acid-base balance, and support red blood cell production and bone health.

When the kidneys become damaged or their function is disrupted, waste products and excess fluid may accumulate in the body. Kidney disorders can be temporary or long-lasting, and their severity can range from mild abnormalities to advanced kidney failure.

Knowing the most common kidney diseases can help people recognize potential warning signs and understand when professional evaluation may be necessary.

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

What Are the Most Common Kidney Diseases?

Kidney disease is not one single condition. Different disorders can affect the kidneys in different ways.

Some of the commonly encountered kidney conditions include:

1. Chronic kidney disease

2. Acute kidney injury

3. Kidney stones

4. Urinary and kidney infections

5. Diabetic kidney disease

6. Hypertensive kidney disease

7. Glomerulonephritis

8. Nephrotic syndrome

9. Polycystic kidney disease

10. Acute tubular injury or necrosis

11. Congenital and hereditary kidney disorders

12. Kidney failure

Let's look at these conditions in more detail.

1. Chronic Kidney Disease

Chronic kidney disease (CKD) occurs when abnormalities in kidney structure or function persist over time.

Common causes include:

• Diabetes

• High blood pressure

• Certain glomerular diseases

• Inherited kidney disorders

• Recurrent kidney injury

• Some long-term inflammatory or systemic diseases

CKD can progress gradually, and early disease may produce few noticeable symptoms.

Possible later symptoms include:

• Swelling

• Fatigue

• Changes in urination

• Nausea

• Reduced appetite

• Itching

• Breathlessness

• Difficulty concentrating

Regular blood and urine testing is particularly important for people at increased risk.

2. Acute Kidney Injury

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

It can develop over hours or days and may occur because of:

• Severe dehydration

• Infection

• Low blood pressure

• Certain medicines

• Urinary obstruction

• Major surgery

• Severe illness

• Certain toxins or kidney-specific conditions

AKI can sometimes be reversible when the underlying cause is identified and treated promptly.

Reduced urine output may occur, although urine volume can remain normal in some cases.

3. Kidney Stones

Kidney stones develop when certain substances in urine become concentrated and form crystals.

Common stone types include:

• Calcium stones

• Uric acid stones

• Struvite stones

• Cystine stones

A stone may cause no symptoms until it moves into the ureter.

When symptoms occur, they can include:

• Severe side or back pain

• Pain radiating toward the groin

• Blood in urine

• Nausea

• Vomiting

• Urinary urgency

• Pain while urinating

Treatment depends on stone size, location, composition and whether there is obstruction or infection.

4. Kidney and Urinary Tract Infections

Urinary tract infections can involve the bladder and, in some cases, spread to the kidneys.

A kidney infection may cause:

• Fever

• Chills

• Flank or back pain

• Burning during urination

• Frequent urination

• Nausea or vomiting

Kidney infections require appropriate medical evaluation and treatment, particularly when fever and flank pain occur together.

An infected obstructed urinary system can become a medical emergency.

5. Diabetic Kidney Disease

Diabetes is an important cause of chronic kidney disease.

Persistently elevated blood glucose can damage the small blood vessels and filtering structures within the kidneys.

Early diabetic kidney disease may not cause obvious symptoms.

Doctors may monitor:

• Blood glucose

• Blood pressure

• eGFR

• Urine albumin

• Overall cardiovascular risk

Good diabetes and blood pressure management can help reduce the risk of kidney complications.

6. Hypertensive Kidney Disease

Long-standing high blood pressure can damage kidney blood vessels and filtering structures.

At the same time, kidney disease can contribute to elevated blood pressure, creating a cycle in which each condition can worsen the other.

Managing blood pressure is therefore an important part of protecting kidney function.

7. Glomerulonephritis

The glomeruli are microscopic filtering units inside the kidneys.

Inflammation affecting these structures is called glomerulonephritis.

Possible findings include:

• Blood in urine

• Protein in urine

• Swelling

• High blood pressure

• Reduced kidney function

The causes vary and can include infections, autoimmune disorders and other diseases.

Some forms may require specialized investigations, including blood tests and, in selected cases, a kidney biopsy.

8. Nephrotic Syndrome

Nephrotic syndrome occurs when the kidneys allow an excessive amount of protein to escape into the urine.

It can result in:

• Significant proteinuria

• Low blood albumin

• Swelling

• Increased blood lipid levels

There are multiple possible causes, including diseases affecting the glomeruli and systemic conditions.

Treatment depends on the underlying cause rather than simply treating the swelling.

9. Polycystic Kidney Disease

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

Over time, cyst growth can affect kidney structure and function.

Some individuals may experience:

• High blood pressure

• Flank discomfort

• Blood in urine

• Recurrent urinary infections

• Kidney stones

• Progressive decline in kidney function

Because PKD can run in families, appropriate evaluation and family counseling may be important.

10. Acute Tubular Injury or Necrosis

Acute tubular injury, sometimes called acute tubular necrosis, can occur when kidney tubule cells are damaged.

Potential triggers include:

• Severe illness

• Reduced blood flow to the kidneys

• Certain medications or toxins

• Severe infections

• Major surgery

Treatment generally focuses on identifying and correcting the underlying cause while carefully managing fluids, electrolytes and other complications.

Some patients recover kidney function, while severe cases may temporarily require dialysis.

11. Hereditary and Congenital Kidney Disorders

Some kidney diseases are present from birth or result from inherited genetic changes.

Examples include:

• Polycystic kidney disease

• Alport syndrome

• Cystinuria

• Certain congenital structural abnormalities

The clinical presentation varies significantly.

Specialist assessment can help determine the appropriate monitoring and treatment strategy.

12. Kidney Failure

Kidney failure occurs when kidney function becomes severely impaired and the kidneys can no longer adequately maintain the body's internal balance.

Advanced kidney failure may cause:

• Severe fatigue

• Swelling

• Nausea

• Poor appetite

• Itching

• Breathlessness

• Electrolyte abnormalities

• Changes in urine output

• Confusion in severe cases

Depending on the patient's condition, management may involve medications, dietary and fluid adjustments, dialysis or kidney transplantation.

Common Symptoms That May Suggest Kidney Disease

Different kidney conditions cause different symptoms, and some early kidney diseases may be completely silent.

Potential warning signs include:

• Persistent changes in urination

• Foamy urine

• Blood in urine

• Swelling around the feet or eyes

• High blood pressure

• Persistent fatigue

• Nausea or poor appetite

• Flank pain in certain conditions

• Itching in advanced kidney disease

• Unexplained changes in kidney-function blood tests

Having one of these symptoms does not automatically mean a person has kidney disease.

How Are Kidney Diseases Diagnosed?

A kidney specialist may use several types of tests.

Blood Tests

Common blood investigations may include:

• Serum creatinine

• eGFR

• Blood urea nitrogen

• Electrolytes

• Hemoglobin

• Calcium and phosphorus

• Other tests based on the suspected condition

Urine Tests

Urine testing may identify:

• Protein

• Albumin

• Blood

• Infection

• Glucose

• Other abnormalities

A urine albumin-to-creatinine ratio is often useful for detecting albumin leakage.

Imaging

Depending on the suspected condition, doctors may recommend:

• Kidney ultrasound

• CT imaging

• MRI

• Other specialized imaging

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

Kidney Biopsy

In selected patients, a kidney biopsy may be necessary to determine the specific type of kidney disease and guide treatment.

A biopsy is not required for every kidney condition.

Who Is at Higher Risk of Kidney Disease?

Kidney disease can affect anyone, but certain factors increase risk.

These include:

• Diabetes

• High blood pressure

• Family history of kidney disease

• Cardiovascular disease

• Previous acute kidney injury

• Recurrent kidney stones

• Certain autoimmune diseases

• Obesity

• Smoking

• Some inherited disorders

People with these risk factors may benefit from periodic kidney-function and urine testing as advised by their healthcare professional.

Can Kidney Disease Be Prevented?

Not every kidney disease can be prevented, particularly inherited and some autoimmune conditions.

However, several measures can support kidney health:

• Control blood pressure.

• Manage diabetes effectively.

• Avoid unnecessary use of potentially kidney-harming medicines.

• Maintain a healthy weight.

• Reduce excessive salt intake.

• Drink an appropriate amount of fluid.

• Treat urinary infections appropriately.

• Follow recommended medical check-ups.

• Investigate persistent abnormalities in blood or urine tests.

People who already have kidney disease may require a more specific diet and fluid plan.

When Should You See a Nephrologist?

A nephrologist may be appropriate if you have:

• Persistent elevated creatinine

• Reduced eGFR

• Protein or albumin in urine

• Unexplained blood in urine

• Difficult-to-control blood pressure

• Recurrent acute kidney injury

• Significant swelling

• Advanced CKD

• Kidney failure

• Complex kidney disease

• Kidney disease associated with another systemic condition

Early specialist assessment can help identify the cause and establish appropriate monitoring.

Kidney Care at Prabhakar Bhurke Clinic

At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialized care for a variety of kidney disorders.

The evaluation and management of patients may include conditions such as:

• Chronic kidney disease

• Acute kidney injury

• Diabetic kidney disease

• Hypertensive kidney disease

• Glomerular disorders

• Kidney failure

• Kidney stones from a medical kidney perspective

• Dialysis-related care

• Kidney transplant-related nephrology care

• Complex renal disorders

Treatment is individualized according to the patient's diagnosis, kidney function, symptoms, medical history and investigation results.

Frequently Asked Questions

What is the most common kidney disease?

Chronic kidney disease is one of the most important and commonly encountered long-term kidney conditions. Diabetes and high blood pressure are major causes of CKD.

What are the early signs of kidney disease?

Early kidney disease may cause no symptoms. When abnormalities occur, they may include protein in urine, blood in urine, changes in blood pressure or abnormal kidney-function tests.

Can kidney disease be cured?

The answer depends on the specific disease. Some acute kidney conditions can improve significantly when treated promptly. Many chronic kidney diseases cannot be completely reversed, but appropriate treatment may slow progression and manage complications.

Are kidney stones a kidney disease?

Kidney stones are a urinary-system disorder involving crystal formation. They can affect the kidneys and urinary tract and may cause obstruction or kidney damage in certain circumstances.

Which doctor treats kidney disease?

A nephrologist specializes in medical kidney diseases. A urologist manages many structural and surgical urinary conditions, including certain kidney stones and urinary obstructions.

Can kidney disease occur without symptoms?

Yes. Some kidney diseases, especially early chronic kidney disease, can progress without obvious symptoms. Blood and urine testing can identify abnormalities before significant symptoms develop.

Conclusion

The most common kidney diseases include chronic kidney disease, acute kidney injury, kidney stones, kidney infections, diabetic and hypertensive kidney disease, glomerular disorders, polycystic kidney disease and kidney failure.

Because kidney disorders differ greatly in their causes and treatment, identifying the underlying condition is essential. Early evaluation is particularly important for people with diabetes, high blood pressure, a family history of kidney disease or abnormal blood and urine tests.

For specialized nephrology and transplant-related care, Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic can evaluate kidney concerns and develop an individualized management plan based on the patient's condition.

Medical Disclaimer

This article is intended for general educational purposes only and does not constitute medical advice, diagnosis or treatment. The symptoms described can occur with many different medical conditions and cannot be used to diagnose kidney disease. Do not start, stop or change medicines based on this information. Kidney disease requires individualized assessment using medical history, examination and appropriate laboratory or imaging tests. Seek urgent medical care for severe breathlessness, chest pain, very little or no urine, severe pain with fever, confusion or rapidly worsening symptoms. Consult a qualified nephrologist or other appropriate healthcare professional for personalized medical advice.