Chronic Kidney Disease Causes: How to Reduce Your Risk

What Is Chronic Kidney Disease?

Chronic kidney disease is defined by abnormalities in kidney structure or function that persist for at least three months and affect health. Clinicians commonly classify CKD by estimated glomerular filtration rate (eGFR), from G1 through G5, along with albuminuria when appropriate.

These categories describe kidney function; they do not determine symptoms, treatment, or whether dialysis is required. A person can have significant kidney disease even when symptoms are minimal, particularly during earlier stages.

Why CKD Matters in India?

Diabetes and hypertension are major causes or contributors to CKD worldwide and are important risk factors in India.

Other kidney conditions can also contribute, including the following:

• Glomerular diseases
• Polycystic kidney disease
• Congenital or structural urinary tract abnormalities
• Recurrent or complicated kidney infections
• Obstructive urinary tract disease
• Certain inherited kidney disorders
• Long-term exposure to some medicines or nephrotoxic substances

The exact pattern of CKD causes can differ between studies and populations, so a single list should not be assumed to represent every patient in India.

Possible Symptoms of CKD

Early CKD may cause few or no noticeable symptoms.

As kidney function declines, some people may develop the following conditions:

• Fatigue or weakness
• Swelling of the feet or ankles
• Changes in urination
• Nausea or reduced appetite
• Itching
• Muscle cramps
• Breathlessness related to fluid accumulation or other complications

These symptoms are not specific to CKD and can occur with many other conditions. For people at increased risk, kidney testing can identify disease before symptoms become obvious.

Top Causes and Risk Factors for CKD

To understand CKD, it’s important to know it progresses silently through different stages. Early detection and management by an expert nephrologist can slow progression, prevent complications, and protect long-term kidney health.

1. Diabetes

Diabetes is an important cause of CKD. Constantly elevated blood glucose can damage the small blood vessels and filtering structures of the kidneys over time. Diabetic kidney disease may develop gradually, and albumin in the urine can be an early indicator. People with diabetes may therefore need routine assessment of kidney function and urine albumin, depending on their clinical circumstances.

2. Hypertension (High Blood Pressure)

Long-standing hypertension can damage the blood vessels and filtering structures of the kidneys. At the same time, CKD itself can contribute to high blood pressure, creating a relationship that may worsen both conditions. Blood-pressure management should therefore be individualised according to kidney function, albuminuria, age, and other medical conditions.

3. Polycystic Kidney Disease and Other Genetic Conditions

Some forms of CKD are inherited. Autosomal dominant polycystic kidney disease (ADPKD), for example, causes multiple kidney cysts that can progressively affect kidney structure and function. Family history can therefore be important when evaluating unexplained kidney disease or certain patterns of kidney problems.

4. Kidney Stones and Urinary Tract Problems

Kidney stones do not automatically cause CKD. However, recurrent or complicated stones, urinary obstruction, repeated infections associated with obstruction, or significant structural damage can contribute to kidney injury. Similarly, an ordinary urinary tract infection does not automatically cause CKD. Repeated kidney infections, particularly when associated with structural abnormalities, obstruction or other complications, may contribute to chronic kidney damage.

5. Other Kidney Diseases

CKD can also result from conditions affecting the kidney’s filtering units, blood vessels or tubules.

Here are a few common examples:

• Glomerulonephritis
• Interstitial kidney disease
• Autoimmune kidney disorders
• Congenital abnormalities
• Obstructive uropathy
• Certain inherited disorders

Some medicines and toxic exposures can also cause kidney injury, particularly with inappropriate or prolonged use.

How Can You Reduce Your Risk of CKD?

Not every case of CKD can be prevented, particularly when genetic or structural conditions are involved.

However, several measures can reduce risk or help protect kidney function.

Step 1. Control Blood Pressure and Diabetes

If you have hypertension or diabetes, following an appropriate treatment plan is important. Regular monitoring helps determine whether treatment is controlling these conditions adequately. For people with diabetes, kidney assessment may include both eGFR and urine albumin testing, depending on the clinical situation.

Step 2. Follow an Individualised Diet

No single kidney-friendly diet suits everyone with CKD. Dietary recommendations can change according to:

• CKD stage
• Potassium level
• Phosphorus level
• Sodium intake
• Protein requirements
• Nutritional status
• Diabetes
• Blood pressure
• Whether the person is receiving dialysis

For some people, reducing excessive sodium intake is important. Protein intake may also need adjustment in certain patients, but unnecessarily restricting protein can be harmful, particularly when nutritional intake is already inadequate.

Similarly, fruits and vegetables are not universally appropriate in unlimited quantities for every person with CKD because potassium requirements vary. A renal dietitian or treating clinician can customise dietary advice to the individual’s kidney function and laboratory results.

Step 3. Stay Physically Active

Regular physical activity supports cardiovascular health, physical function, blood-pressure control and overall wellbeing. For people with CKD, the appropriate type and intensity of exercise should consider age, kidney function, cardiovascular health, symptoms, and other medical conditions. View exercise as part of overall health management rather than a standalone treatment that directly guarantees slower CKD progression.

Step 4. Avoid Tobacco

Smoking is associated with cardiovascular and kidney-related health risks. Stopping smoking can support overall cardiovascular and kidney health.

Step 5. Use Painkillers Carefully

Some medicines, particularly certain non-steroidal anti-inflammatory drugs (NSAIDs), can cause kidney injury in susceptible people, especially with prolonged use, dehydration or certain combinations of medicines. This does not mean that every painkiller is unsafe. If you have CKD or other kidney risk factors, discuss regular or long-term painkiller use with a healthcare professional.

Step 6. Maintain a Healthy Weight

Maintaining a healthy weight can support blood-pressure control, glucose management and cardiovascular health. Weight-management goals should be realistic and individualised, not based on a single target for everyone.

CKD Treatment: From Disease Management to Kidney Replacement Therapy

CKD treatment depends on its cause, stage, albuminuria, symptoms, complications and other health conditions. The overall approach is to manage the underlying disease, protect remaining kidney function where possible, address complications and maintain quality of life.

Treatment may include the following measures:

• Managing diabetes and blood pressure
• Medicines that reduce kidney and cardiovascular risk when appropriate
• Treating the underlying kidney disease
• Individualised dietary adjustments
• Appropriate physical activity
• Avoiding harmful kidney exposures
• Monitoring and treating CKD-related complications
• Planning for advanced kidney disease when appropriate

Managing Anaemia and Other CKD Complications

Anaemia is a common complication of more advanced CKD, although it can have many other causes.

Evaluation may include the following parameters:

• Complete blood count
• Iron studies
• Assessment for blood loss
• Vitamin deficiencies when appropriate
• Other investigations based on the clinical situation

Treatment depends on the underlying cause and severity. Depending on the patient, management may include iron therapy, erythropoiesis-stimulating agents or other treatment.

These therapies should be prescribed based on clinical assessment and laboratory findings rather than automatically for every person with CKD.

Other complications, such as electrolyte abnormalities, mineral and bone disorders, fluid retention and cardiovascular risk, may also require monitoring and treatment as CKD progresses.

When Is Kidney Replacement Therapy Considered?

Advanced CKD may eventually require kidney replacement therapy. However, dialysis does not become automatically necessary simply because a person reaches a particular CKD stage.

The decision to start dialysis considers the person’s overall clinical situation, as follows:

• Symptoms attributable to kidney failure
• Signs of reduced kidney function affecting health
• Fluid or blood-pressure problems
• Electrolyte or acid-base abnormalities
• Nutritional status
• Quality of life
• Laboratory findings
• Patient preferences and treatment goals

Dialysis is one form of kidney replacement therapy. For suitable patients with kidney failure, kidney transplantation can be another treatment option. Transplant planning also depends on the patient’s overall health, surgical suitability, donor availability, and other clinical factors. Planning for possible kidney replacement therapy may begin before kidney failure develops, allowing time for appropriate evaluation and preparation.

Final Thoughts

Chronic kidney disease can have many causes, and diabetes and hypertension are important contributors. Other conditions such as inherited kidney disorders, glomerular disease, structural abnormalities and recurrent or complicated urinary problems can also contribute to chronic kidney damage. Early CKD may produce few symptoms, which is why people with relevant risk factors may benefit from appropriate kidney-function and urine testing.

Prevention and management are individualised. Blood-pressure and diabetes control, tobacco avoidance, appropriate physical activity, careful medication use and a diet tailored to kidney function can all form part of kidney care. Eskag Sanjeevani provides medical evaluation and treatment for patients with kidney-related conditions. For people with advanced CKD, treatment decisions depend on the person’s clinical condition and preferences rather than kidney stage alone. If you have risk factors for CKD, abnormal kidney tests or persistent urinary or systemic symptoms, discuss the appropriate evaluation and follow-up with your healthcare professional.