The kidneys continuously filter the blood, remove waste products through urine, maintain fluid and electrolyte balance and perform several other important functions.
When kidney function becomes significantly impaired, waste and excess fluid can build up in the body. Changes in electrolytes, acid-base balance, blood production and mineral metabolism can also occur.
The kidney not working symptoms a person experiences depend on how quickly kidney function has changed and how severe the impairment is.
Importantly, kidney disease can sometimes progress without obvious symptoms, particularly during earlier stages. An abnormal blood or urine test may identify a kidney problem before a person feels unwell.
At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides specialist evaluation and management for kidney-function abnormalities and kidney diseases.
The First Clue May Be a Change in Urination
Changes in urine are among the symptoms that can prompt people to investigate their kidney health.
Possible changes include:
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Passing urine more or less frequently
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Increased urination at night
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Foamy urine
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Blood in the urine
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Reduced urine volume
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Difficulty passing urine
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Changes in the usual appearance of urine
These changes do not automatically mean that the kidneys are failing.
Urinary symptoms can also occur because of diabetes, urinary infections, prostate problems, kidney stones and other conditions.
Persistent or unexplained changes should therefore be evaluated.
Swelling Can Develop When Fluid Builds Up
Healthy kidneys help regulate the amount of salt and water in the body.
When kidney function becomes severely reduced, the body may retain excess fluid.
This can lead to swelling, particularly around:
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Ankles
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Feet
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Legs
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Hands
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Face or around the eyes
Swelling can also occur because of heart disease, liver disease, venous problems or certain medicines.
A new pattern of unexplained swelling should be assessed rather than assumed to be kidney failure.
Feeling Exhausted Even After Rest
Persistent tiredness can occur with significant kidney dysfunction.
Advanced kidney disease may contribute to anemia, metabolic disturbances, poor sleep and reduced physical wellbeing.
A person may notice:
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Low energy
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Reduced exercise tolerance
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Weakness
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Difficulty performing normal activities
Fatigue has many causes, so blood tests are often needed to determine whether kidney disease or another condition is responsible.
Appetite and Taste May Change
As kidney function becomes severely impaired, waste products can accumulate.
Some patients may develop:
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Poor appetite
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Nausea
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Changes in taste
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Metallic taste in the mouth
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Unintentional weight loss
These symptoms can affect nutritional intake and overall health.
Persistent appetite loss should receive medical attention, especially when accompanied by abnormal kidney-function results.
Nausea and Vomiting Should Not Be Ignored
Nausea and vomiting can occur in advanced kidney dysfunction.
However, vomiting can also cause dehydration, which may further reduce kidney function in susceptible individuals.
Seek prompt medical advice when vomiting is persistent, particularly if there is:
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Reduced urine output
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Severe weakness
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Dizziness
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Swelling
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Known kidney disease
Itching and Dry Skin
Persistent itching can occur in advanced kidney disease.
Kidney-related itching may be associated with changes in mineral metabolism, waste accumulation and other complications.
The skin may feel:
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Dry
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Rough
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Irritated
Itching is not specific to kidney disease, however. Allergies, dermatological conditions, liver problems and medications can also cause itching.
Muscle Cramps and Weakness
When the kidneys are severely impaired, electrolyte and mineral disturbances can develop.
These changes may contribute to:
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Muscle cramps
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Weakness
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Muscle discomfort
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Restlessness
Abnormal potassium levels can be particularly important because severe abnormalities can affect the heart.
For this reason, significant weakness or muscle symptoms in someone with known kidney disease should not be ignored.
Breathlessness May Indicate Fluid Overload
Severe kidney dysfunction can lead to fluid accumulation.
When excess fluid affects the lungs or causes significant swelling, a person may develop:
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Breathlessness
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Difficulty lying flat
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Reduced exercise tolerance
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Rapid weight gain from fluid
Breathing problems can also have cardiac or respiratory causes.
Severe or rapidly worsening breathlessness requires urgent medical attention.
Changes in Concentration or Alertness
When kidney failure becomes advanced, accumulation of waste products and metabolic abnormalities can affect the nervous system.
Possible symptoms include:
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Difficulty concentrating
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Excessive sleepiness
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Reduced alertness
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Confusion
A sudden or severe change in mental status is an emergency and requires immediate medical evaluation.
High Blood Pressure Can Be a Warning Sign
The relationship between kidney disease and blood pressure works in both directions.
Kidney disease can contribute to high blood pressure, while long-standing hypertension can damage the kidneys.
Difficult-to-control blood pressure may therefore be a reason to investigate kidney function, particularly when other risk factors are present.
Is Lower Back Pain a Sign That the Kidneys Are Failing?
Not usually.
Most chronic kidney disease does not cause severe lower back pain.
Pain in the flank or side can occur with conditions such as:
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Kidney stones
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Kidney infection
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Urinary obstruction
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Certain cyst-related complications
Muscle strain and spinal problems are much more common causes of ordinary lower back pain.
Therefore, back pain alone should not be used to determine whether the kidneys are failing.
Can Kidney Problems Develop Without Symptoms?
Yes.
This is particularly important in chronic kidney disease.
A person may have reduced kidney function without feeling sick during the earlier stages.
Kidney disease may be discovered during testing for:
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Diabetes
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High blood pressure
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Heart disease
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Routine health evaluation
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Abnormal urine findings
Regular testing is particularly important for people at increased risk.
What Causes Kidney Function to Become Poor?
Kidney dysfunction can develop suddenly or gradually.
Acute Kidney Injury
A sudden decline in kidney function can occur because of:
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Severe dehydration
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Serious infection
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Low blood pressure
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Certain medications
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Urinary obstruction
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Major illness
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Kidney inflammation
Some cases of acute kidney injury can improve after the underlying cause is treated.
Chronic Kidney Disease
Long-term kidney damage may result from:
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Diabetes
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High blood pressure
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Glomerular diseases
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Inherited kidney disorders
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Recurrent kidney problems
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Other chronic medical conditions
Advanced CKD can eventually lead to kidney failure.
How Do Doctors Know If the Kidneys Are Working?
Symptoms provide clues, but testing is essential.
Serum Creatinine
Creatinine is a waste product filtered by the kidneys.
A rise in serum creatinine can indicate reduced kidney filtration, although it can also be influenced by other factors.
eGFR
Estimated glomerular filtration rate helps estimate kidney filtration and is an important measurement for assessing chronic kidney function.
Urine Tests
Urinalysis and urine albumin testing can identify evidence of kidney damage.
Doctors may look for:
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Protein
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Albumin
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Blood
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Signs of infection
Electrolytes
Blood tests may measure:
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Potassium
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Sodium
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Bicarbonate
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Calcium
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Phosphorus
Other tests may be recommended depending on the suspected cause.
What Does Kidney Failure Mean?
Kidney failure is a severe loss of kidney function in which the kidneys can no longer adequately maintain the body's internal balance.
At this stage, some patients may require kidney replacement therapy, such as:
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Hemodialysis
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Peritoneal dialysis
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Kidney transplantation
However, not every person with an abnormal creatinine result has kidney failure, and dialysis is not determined by one creatinine number alone.
Can Kidney Function Improve?
Sometimes.
Improvement is more likely when the problem is caused by a reversible condition, particularly in acute kidney injury.
Examples may include appropriate treatment of:
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Dehydration
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Infection
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Certain medication-related kidney injury
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Urinary obstruction
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Other acute illnesses
Established chronic kidney damage generally cannot simply be reversed.
Nevertheless, appropriate treatment can help preserve remaining kidney function and reduce the risk of further deterioration.
What Can You Do to Protect Kidney Function?
If your kidney tests are abnormal, treatment should focus on the underlying cause.
General measures may include:
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Control blood pressure according to your doctor's recommendations.
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Manage diabetes appropriately.
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Take prescribed medicines correctly.
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Avoid unnecessary painkillers.
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Avoid unverified kidney detox products.
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Maintain appropriate hydration unless fluid restriction has been advised.
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Limit excessive salt intake.
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Attend scheduled blood and urine tests.
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Follow an individualized kidney-friendly diet when recommended.
People with established kidney disease should not make major changes to fluid, protein, potassium or other dietary intake without professional advice.
When Are Kidney Not Working Symptoms an Emergency?
Seek immediate medical attention for:
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Very little or no urine
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Severe breathlessness
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Chest pain
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Confusion or altered consciousness
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Persistent vomiting
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Severe or rapidly increasing swelling
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Extreme weakness
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Rapid deterioration in health
These symptoms can indicate serious kidney or systemic complications.
When Should You Consult a Nephrologist?
A nephrologist specializes in medical kidney conditions.
Specialist evaluation may be appropriate if you have:
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Persistently elevated creatinine
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Reduced eGFR
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Protein or albumin in urine
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Unexplained blood in urine
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Difficult-to-control blood pressure
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Recurrent acute kidney injury
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Progressive decline in kidney function
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Advanced chronic kidney disease
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Suspected kidney failure
Early assessment can help identify the underlying cause and establish an appropriate treatment and monitoring plan.
Kidney Function Care 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 concerns.
Depending on the patient's condition, care may involve:
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Review of creatinine and eGFR trends
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Urine protein and albumin assessment
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Blood-pressure evaluation
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Electrolyte monitoring
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Investigation of acute kidney injury
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Chronic kidney disease management
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Assessment of kidney failure complications
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Dialysis evaluation when medically indicated
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Kidney transplant-related care for appropriate patients
The treatment plan is based on the cause and severity of kidney dysfunction rather than symptoms alone.
Frequently Asked Questions
What are the symptoms of kidneys not working properly?
Possible symptoms include changes in urination, swelling, persistent fatigue, nausea, poor appetite, itching, muscle weakness, breathlessness and difficulty concentrating. Some people have no noticeable symptoms during earlier kidney disease.
What happens when the kidneys stop working properly?
Waste and excess fluid can accumulate, and abnormalities in electrolytes, acid-base balance, blood production and mineral metabolism may develop. Severe kidney failure may require dialysis or transplantation.
Is frequent urination a sign of kidney failure?
Not necessarily. Frequent urination has many causes, including diabetes and urinary conditions. It should be interpreted alongside other symptoms and kidney tests.
Can kidney failure cause swelling?
Yes. Severe kidney dysfunction can cause fluid retention and swelling, particularly in the legs, ankles, feet or face.
Can kidney function improve after it becomes weak?
Some acute kidney problems can improve when the underlying cause is treated. Established chronic kidney damage is generally not completely reversible, although further decline may sometimes be slowed.
Does high creatinine mean the kidneys have stopped working?
No. High creatinine can indicate reduced kidney filtration, but the result must be interpreted with eGFR, previous results, urine tests and the overall clinical situation.
Can kidneys fail without warning symptoms?
Yes. Chronic kidney disease can remain silent for a long time. Blood and urine testing may identify kidney damage before symptoms become obvious.
When should I see a kidney specialist?
Consider seeing a nephrologist for persistent creatinine elevation, reduced eGFR, protein or blood in urine, difficult-to-control hypertension, progressive kidney-function decline or suspected kidney failure.
Conclusion
Knowing the kidney not working symptoms can encourage people to seek medical attention when something changes, but symptoms alone cannot determine how well the kidneys are functioning.
Changes in urination, swelling, fatigue, appetite loss, nausea, itching, weakness, breathlessness and confusion can occur with significant kidney dysfunction. At the same time, chronic kidney disease may produce few or no symptoms in its earlier stages.
Blood tests such as creatinine and eGFR, together with urine testing and other investigations, are important for identifying kidney problems and understanding their severity.
If you have symptoms, risk factors or abnormal kidney-function results, timely medical evaluation can help identify the underlying problem and determine the appropriate treatment.
For specialist kidney evaluation and individualized care, consult Dr. Sandip Prabhakar Bhurke at Prabhakar Bhurke Clinic.
Medical Disclaimer
This article is intended only for general educational and informational purposes and does not constitute medical advice, diagnosis or treatment. Symptoms of reduced kidney function can vary widely, and many of the symptoms described can also result from conditions unrelated to the kidneys. Kidney failure cannot be diagnosed from symptoms alone and requires appropriate medical evaluation and testing. Do not start, stop or change medicines, painkillers, supplements 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, extreme weakness or rapidly worsening symptoms. Consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist for individualized medical advice.
