Your kidneys are your body’s natural filters — working quietly every minute to remove toxins, balance minerals, and keep your blood clean. But when they start to lose their efficiency, waste begins to build up in your body, affecting almost every organ system. This condition is known as Chronic Kidney Disease (CKD) — and learning about it early can make all the difference.
What Is Chronic Kidney Disease?
Chronic Kidney Disease, often called CKD, refers to the gradual loss of kidney function over time. When your kidneys are damaged, they can’t filter waste and extra water from your blood as well as they should. As this continues, waste and fluid can accumulate, causing fatigue, swelling, and other health problems. CKD doesn’t happen overnight — it’s a slow and progressive condition. The damage can range from mild to severe, and in advanced stages, the kidneys may stop working completely. At that point, patients may require dialysis or a kidney transplant to survive. While there’s currently no permanent cure for CKD, early diagnosis, lifestyle changes, and medical management can significantly slow its progression.
What Do the Kidneys Actually Do?
Each of us has two kidneys, roughly the size of our fists, located below the ribs on either side of the spine. Despite their small size, they perform several vital functions:
- Filter waste, toxins, and excess fluids from the blood
- Maintain the right balance of electrolytes like sodium, potassium, and calcium
- Regulate blood pressure by releasing specific hormones
- Support the production of red blood cells
- Keep bones healthy by activating vitamin D
When the kidneys are damaged, these functions are compromised — leading to widespread effects throughout the body.
The 5 Stages of Chronic Kidney Disease
Doctors classify CKD into five stages, based on how well your kidneys filter waste — measured by the Glomerular Filtration Rate (GFR).
| Stage | GFR (ml/min) | Description |
| Stage 1 | 90+ | Mild damage with normal kidney function |
| Stage 2 | 60–89 | Early decline in function |
| Stage 3 | 30–59 | Moderate loss of kidney function |
| Stage 4 | 15–29 | Severe reduction in filtration |
| Stage 5 | <15 | Kidney failure or end-stage renal disease |
Early stages often have no symptoms, which is why regular screening is essential — especially if you’re at risk.
How Common Is CKD?
Globally, 1 in 10 adults is affected by chronic kidney disease. In India, CKD has emerged as a major public health concern, largely driven by the rise in diabetes, hypertension, and lifestyle-related illnesses. Many cases remain undiagnosed until the disease is in its advanced stages — making awareness and early detection crucial.
Symptoms of Chronic Kidney Disease
In the early phase, CKD may not cause noticeable symptoms. But as the condition progresses, signs of kidney dysfunction start appearing, such as:
- Persistent fatigue or weakness
- Loss of appetite and nausea, vomiting
- Swelling in feet, ankles, or around the eyes, facial swelling
- Foamy or bubbly urine (sign of excess protein)
- Dry or itchy skin
- Trouble sleeping or concentrating
- Muscle cramps, especially at night
- High blood pressure that’s difficult to control
- Shortness of breath, if fluid builds up in the lungs
- Chest pain, if fluid builds up around the lining of the heart
Since symptoms can be vague, it’s important to get regular kidney check-ups if you have risk factors like diabetes or hypertension.
Causes and Risk Factors
CKD develops when kidney tissue is damaged over many years. The two leading causes are:
- Diabetes – High blood sugar damages the tiny blood vessels in the kidneys.
- High Blood Pressure – Increased pressure in the kidney’s delicate filtration system causes gradual scarring and decline.
Other causes include:
- Glomerulonephritis (inflammation of the kidney filters)
- Polycystic kidney disease (genetic cystic growths)
- Obstruction from kidney stones or prostate enlargement
- Repeated kidney infections (pyelonephritis)
- Autoimmune diseases like lupus
- Long-term use of painkillers (NSAIDs)
Who Is at Higher Risk?
- People over 60 years old
- Those with diabetes or hypertension
- Individuals with a family history of kidney disease
- Patients with heart disease
- Chronic users of over-the-counter pain medications
How CKD Is Diagnosed
Detecting chronic kidney disease (CKD) early is simple and painless. Your doctor can assess your kidney function with just two basic tests:
- Blood Test (eGFR – Estimated Glomerular Filtration Rate): This test measures how well your kidneys are filtering waste from your blood.
- Urine Test (uACR – Urine Albumin-to-Creatinine Ratio): This checks for a protein called albumin in your urine. The presence of albumin may indicate early kidney damage.
To get an accurate picture of your kidney health, both tests should be done together. If your eGFR is below 60 or your uACR is above 30 for three months or longer, it could be a sign of chronic kidney disease — and you should speak with your nephrologist for further evaluation and care.
Understanding Your Kidney Function Tests eGFR (Estimated Glomerular Filtration Rate)
Your eGFR is a simple blood test that shows how well your kidneys are cleaning waste and toxins from your blood. It’s calculated using your creatinine level, along with your age and sex (and sometimes another marker called cystatin C).
- A higher eGFR number means your kidneys are working better.
- eGFR naturally declines with age, so what’s “normal” can differ from person to person.
- Doctors use your eGFR to help determine your stage of chronic kidney disease (CKD) and to monitor how your kidneys change over time.
uACR (Urine Albumin-to-Creatinine Ratio)
Your uACR test checks two substances in your urine — albumin (a type of protein) and creatinine (a waste product). Healthy kidneys keep albumin in your blood while filtering creatinine out into urine. If albumin starts leaking into your urine, it can be an early sign of kidney damage.
- The uACR is found by dividing the amount of albumin by the amount of creatinine in your urine.
- A lower uACR number is better, meaning less albumin is leaking.
- A high uACR indicates albuminuria, which increases your risk for kidney and heart complications.
In some cases, your healthcare professional may order additional testing to get information about your kidney health:
- Ultrasound or CT Scan: Evaluates kidney size, shape, and structure.
- Kidney Biopsy: In selected cases, a small tissue sample is analyzed under a microscope to identify the exact cause.
Treatment and Management of CKD
While CKD cannot be reversed, timely management can slow progression and improve quality of life. Treatment focuses on controlling the underlying cause and protecting remaining kidney function.
Lifestyle and Self-Care
- Keep your blood pressure under control.
- Manage diabetes with diet, medication, and regular monitoring.
- Eat a kidney-friendly diet – lower in salt, controlled protein, and rich in heart-healthy foods.
- Stay active and maintain a healthy weight.
- Avoid smoking and limit alcohol.
- Use painkillers (NSAIDs) only under medical advice.
Medications
Depending on your kidney condition, your doctor may prescribe:
- ACE inhibitors / ARBs – to control blood pressure and reduce kidney strain.
- Diuretics – to remove excess fluid.
- Erythropoietin – to treat anemia.
- Phosphate binders – to control phosphate levels.
- Vitamin D supplements – to maintain bone strength.
- Cholesterol-lowering drugs – to protect heart and kidney health.
When Kidneys Stop Working: Dialysis and Transplant Options
- Dialysis
When the kidneys fail to function adequately, dialysis steps in to do their job — filtering waste, salt, and fluid from the blood.
Two main types of dialysis:
- Hemodialysis: Your blood is circulated through a machine to remove toxins. Usually done 3 times a week, lasting about 4 hours per session.
- Peritoneal Dialysis: A special fluid is infused into your abdomen through a tube, which absorbs waste before being drained. It can be done manually during the day (CAPD) or automatically at night (CCPD) using a small machine.
- Kidney Transplant
A kidney transplant offers the best long-term outcomes for patients with end-stage kidney failure. In this surgery, a healthy kidney from a living donor (family member or related) or a deceased donor replaces the damaged one.
Since a person can live healthily with one kidney, living donation is a life-saving option that shortens waiting time.
Living with CKD: What to Expect
A CKD diagnosis doesn’t mean the end of a normal life. Many patients live active, fulfilling lives by taking an active role in their care.
The keys to living well include:
- Keeping medical appointments
- Taking medications as prescribed
- Monitoring blood pressure and sugar regularly
- Following a personalized diet plan
Early detection and consistent care can often delay kidney failure for many years — and in some cases, prevent it altogether.
Prevention: Protecting Your Kidneys for Life
You can reduce your risk of kidney disease by making small but powerful changes:
- Control your blood pressure and blood sugar
- Eat a balanced diet low in salt and processed foods
- Stay physically active at least 5 days a week
- Avoid smoking and limit alcohol
- Stay hydrated — but not excessively
- Avoid unnecessary or prolonged use of painkillers
- Schedule regular kidney check-ups if you’re at risk
Frequently Asked Questions
How do I know if my kidneys are in trouble?
Early kidney disease rarely causes symptoms. Get tested regularly if you have diabetes, hypertension, or a family history of kidney problems.
What foods should I avoid?
If you have CKD, limit:
- High-salt foods (pickles, packaged snacks)
- Potassium-rich foods (bananas, potatoes, oranges)
- Phosphorus-rich foods (dairy, beans, nuts)
- Work with a renal dietitian to create a meal plan tailored to your stage of CKD.
What color is urine when the kidneys fail?
Urine may appear foamy or frothy, which indicates excess protein — an early sign of kidney damage.
At Urology 360 by Dr. Swapnil Singh Kushwaha, we believe awareness is the first step toward prevention. Whether you’re managing early CKD, on dialysis, or considering a transplant, expert guidance and compassionate care can help you live your healthiest life.
