Dialysis can be an important kidney replacement treatment for people whose kidneys are no longer able to adequately remove waste, excess fluid and certain electrolytes from the body.
However, some patients experience problems during or after dialysis.
A dialysis problem may refer to symptoms such as:
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Low blood pressure
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Dizziness
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Muscle cramps
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Weakness
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Nausea
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Headache
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Fatigue
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Access-site problems
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Infection
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Difficulty achieving adequate dialysis
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Excessive or inadequate fluid removal
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Changes in blood pressure or electrolytes
Not every symptom experienced by a dialysis patient is caused by dialysis itself. Symptoms can also result from anemia, infection, heart disease, nutritional problems, medications, fluid overload or the underlying kidney condition.
Therefore, recurring problems should be evaluated rather than simply accepted as a normal part of dialysis.
At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized assessment and management of kidney failure and dialysis-related concerns.
Why Can Problems Happen During Dialysis?
Hemodialysis rapidly changes the composition and volume of blood.
During treatment, excess fluid and waste products are removed through the dialysis system.
If fluid is removed too quickly, blood pressure may fall.
Changes in electrolytes and other blood components can also contribute to symptoms.
The likelihood of complications can be influenced by:
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Amount of fluid accumulated between sessions
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Rate of fluid removal
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Dry weight
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Blood pressure
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Heart function
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Dialysis prescription
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Vascular access
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Medications
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Nutrition
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Other medical conditions
This is why dialysis treatment needs to be regularly reviewed and individualized.
Common Dialysis Problems
1. Low Blood Pressure During Dialysis
Low blood pressure, also called intradialytic hypotension, is one of the problems some patients experience during hemodialysis.
Symptoms may include:
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Dizziness
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Light-headedness
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Nausea
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Weakness
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Sweating
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Blurred vision
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Fainting in severe cases
One possible reason is that fluid is being removed faster than the circulation can compensate.
Other contributing factors may include:
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Excessive fluid removal
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Certain blood-pressure medicines
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Heart problems
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Autonomic dysfunction
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Eating immediately before dialysis in some patients
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Low blood volume
The dialysis team may review the patient's dry weight, fluid-removal rate, medications and treatment prescription.
Repeated episodes should not be ignored.
2. Muscle Cramps During Dialysis
Some patients develop painful muscle cramps during or toward the end of dialysis.
Cramps may occur when fluid is removed rapidly or when there are changes in fluid and electrolyte balance.
They may affect:
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Legs
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Feet
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Hands
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Abdomen
The dialysis team may need to review fluid removal and other aspects of the dialysis prescription.
Patients should not independently increase salt or fluid intake to prevent cramps because this may worsen fluid overload or blood pressure.
3. Weakness and Tiredness After Dialysis
Feeling tired after dialysis is relatively common, but persistent or severe fatigue deserves evaluation.
Possible contributors include:
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Rapid fluid removal
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Low blood pressure
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Anemia
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Poor nutrition
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Sleep problems
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Infection
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Heart disease
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Inadequate recovery between treatments
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Other medical conditions
If fatigue is becoming worse or interfering with daily activities, the nephrologist may review blood counts, nutritional status, dialysis adequacy and other possible causes.
4. Headache or Nausea
Headache and nausea can occur during or after dialysis.
Possible causes vary and may include:
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Blood-pressure changes
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Fluid shifts
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Electrolyte changes
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Medication effects
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Migraine or another unrelated condition
Persistent or severe headache, particularly when associated with neurological symptoms, should receive medical assessment.
5. Dialysis Access Problems
Hemodialysis requires vascular access.
Common types include:
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Arteriovenous fistula
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Arteriovenous graft
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Central venous catheter
Access problems can interfere with effective dialysis.
Possible signs include:
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Swelling
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Pain
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Redness
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Bleeding
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Poor blood flow
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Difficulty obtaining adequate blood flow
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Changes in the normal thrill or bruit of a fistula
A sudden change in the functioning of an established fistula should be reported promptly.
6. Dialysis Catheter Infection
Central venous dialysis catheters can become infected.
Warning signs may include:
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Fever
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Chills
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Redness around the catheter
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Pain
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Discharge
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Feeling unusually unwell
Bloodstream infection associated with dialysis access can become serious.
Patients with a dialysis catheter who develop fever or chills should contact their healthcare team promptly.
7. Bleeding From Dialysis Access
Some bleeding can occur after needle removal from a fistula or graft.
However, prolonged or heavy bleeding requires immediate attention.
Patients should follow the instructions provided by their dialysis team for controlling bleeding.
If bleeding is severe or does not stop, emergency medical care may be required.
8. Infection of a Fistula or Graft
Although arteriovenous fistulas generally have lower infection risk than central venous catheters, infection can still occur.
Symptoms can include:
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Redness
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Warmth
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Swelling
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Pain
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Drainage
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Fever
Prompt assessment is important because access infection can threaten both the access and the patient's health.
9. Problems With Fluid Removal
One of the main purposes of dialysis is to remove excess fluid.
However, removing too little fluid can leave the patient fluid overloaded, while removing too much or too rapidly can cause symptoms such as low blood pressure and cramps.
Signs of excess fluid may include:
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Swelling
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Increasing body weight
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Breathlessness
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Difficulty lying flat
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High blood pressure
The dialysis team may assess the patient's target or dry weight and fluid gains between sessions.
10. Too Much Fluid Between Dialysis Sessions
Patients who produce little urine may accumulate fluid between treatments.
Excessive fluid intake can make the next dialysis session more difficult because a larger amount may need to be removed.
This can increase the risk of:
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Low blood pressure during dialysis
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Cramps
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Breathlessness
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Swelling
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Heart strain
Fluid recommendations should be individualized according to urine output, kidney function, dialysis schedule and other medical conditions.
11. Electrolyte Problems
Dialysis helps regulate substances such as potassium and bicarbonate.
However, electrolyte abnormalities can still occur depending on:
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Food intake
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Medication
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Residual kidney function
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Dialysis prescription
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Missed or shortened treatments
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Other illnesses
Very high or very low potassium levels can be dangerous because potassium affects heart rhythm.
Regular blood testing helps the medical team adjust treatment appropriately.
12. Anemia and Dialysis-Related Fatigue
People with advanced kidney disease commonly develop anemia.
Anemia can cause:
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Tiredness
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Weakness
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Reduced exercise tolerance
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Breathlessness
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Difficulty concentrating
Anemia management may involve evaluation of hemoglobin, iron status and other factors.
Depending on the cause and clinical situation, treatment may include iron therapy or other prescribed treatments.
Can Missing Dialysis Cause Problems?
Yes.
Missing or shortening dialysis sessions can allow waste products and fluid to accumulate.
Depending on the patient's condition, this can contribute to:
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Fluid overload
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High potassium
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Breathlessness
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Swelling
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Increasing blood pressure
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Uremic symptoms
Patients should not routinely skip dialysis without discussing the situation with their dialysis team.
If a session has been missed, the healthcare team can advise when treatment should be rescheduled and whether additional monitoring is necessary.
Why Can Dialysis Become Less Effective?
Sometimes the issue is not a side effect but inadequate dialysis.
Possible reasons include:
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Vascular access dysfunction
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Clotting
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Inadequate blood flow
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Shortened treatment sessions
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Missed treatments
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Incorrect treatment prescription
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Changes in body size or clinical condition
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Peritoneal dialysis-related problems in patients using that modality
Dialysis adequacy is evaluated using clinical assessment and appropriate laboratory measurements rather than symptoms alone.
Dialysis Problem and Blood Pressure
Blood pressure can be challenging in people receiving dialysis.
Some patients have high blood pressure because of:
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Excess fluid
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Sodium intake
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Underlying cardiovascular disease
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Medication issues
Others experience low blood pressure during treatment because of fluid removal or other factors.
Blood-pressure management should therefore be individualized.
Do not independently stop or change blood-pressure medicines because you are receiving dialysis.
What Should You Do If You Feel Sick During Dialysis?
If symptoms develop during a dialysis session, tell the dialysis nurse or doctor immediately.
Do not try to silently tolerate severe dizziness, chest discomfort, breathlessness, intense cramps or other concerning symptoms.
The dialysis team can assess:
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Blood pressure
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Heart rate
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Fluid-removal rate
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Access function
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Symptoms
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Other clinical factors
The dialysis prescription may need adjustment depending on the cause.
What Happens When a Dialysis Problem Keeps Repeating?
Recurring symptoms should trigger a review rather than repeated temporary treatment.
For example, if a patient repeatedly develops low blood pressure, the nephrologist may assess:
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Target dry weight
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Interdialytic weight gain
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Fluid-removal rate
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Blood-pressure medicines
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Heart function
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Dialysis timing
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Other medical conditions
Similarly, repeated access problems may require evaluation for stenosis, thrombosis or infection.
The goal is to identify the underlying reason for the recurring problem.
Can Dialysis Problems Be Prevented?
Not every complication can be prevented, but good dialysis management can reduce some risks.
Helpful measures may include:
Attend Scheduled Dialysis
Regular treatment helps control fluid, electrolytes and waste products.
Follow Individualized Fluid Advice
Avoid excessive fluid intake when fluid restriction has been prescribed.
Monitor Weight
Changes in weight between dialysis sessions can provide useful information about fluid accumulation.
Follow Dietary Recommendations
Dietary requirements vary, but sodium, potassium, phosphorus and fluid may need individualized management.
Protect the Dialysis Access
Avoid unnecessary pressure or trauma to a fistula or graft and follow the access-care instructions provided by the healthcare team.
Take Prescribed Medicines Correctly
Medication doses may need adjustment according to kidney function and dialysis.
Report New Symptoms Early
Fever, access redness, unusual bleeding, breathlessness or repeated low blood pressure should be reported promptly.
Is Every Problem a Sign That Dialysis Should Be Stopped?
No.
Experiencing a dialysis complication does not automatically mean dialysis should be discontinued.
The appropriate response depends on the cause.
The dialysis prescription, fluid-removal rate, medication schedule, vascular access or other aspects of treatment may sometimes be modified.
For patients with advanced kidney failure, stopping dialysis without an appropriate medical plan can be dangerous.
Any decision to change or stop dialysis should be discussed with the treating nephrologist.
What About Peritoneal Dialysis Problems?
Patients receiving peritoneal dialysis can experience a different set of complications.
One of the most important is peritonitis, an infection or inflammation of the peritoneal cavity.
Possible warning signs include:
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Abdominal pain
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Fever
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Nausea
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Vomiting
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Cloudy dialysis fluid
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Feeling unwell
Cloudy peritoneal dialysis effluent should be reported promptly because peritonitis requires timely assessment and treatment.
Other problems can include catheter-related infection, poor drainage, hernia or fluid leakage.
When Is a Dialysis Problem an Emergency?
Seek urgent medical attention for symptoms such as:
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Severe breathlessness
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Chest pain
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Fainting
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Severe confusion
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Seizures
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Very high or very low blood pressure with symptoms
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Heavy or uncontrolled bleeding from dialysis access
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Sudden loss of fistula thrill
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High fever with chills
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Severe weakness
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Severe abdominal pain or cloudy peritoneal dialysis fluid
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Rapidly worsening swelling or fluid overload
Dialysis patients can become seriously ill quickly, so emergency symptoms should not be ignored.
Dialysis and Nutrition
Nutrition is an important part of managing dialysis patients.
Dietary requirements vary depending on:
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Type of dialysis
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Residual kidney function
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Potassium level
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Phosphorus level
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Nutritional status
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Diabetes
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Other medical conditions
Patients should not follow generic internet diets without discussing their nutritional needs with their healthcare team.
Protein requirements may also differ between patients receiving dialysis and those with advanced kidney disease who are not yet on dialysis.
Can Dialysis Problems Affect Quality of Life?
Repeated symptoms can affect sleep, work, physical activity, appetite and emotional well-being.
A patient who frequently experiences:
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Severe fatigue
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Cramping
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Dizziness
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Access problems
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Post-dialysis exhaustion
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Repeated hospital visits
may benefit from a comprehensive review of the dialysis plan.
Managing the underlying cause may improve comfort and daily functioning in appropriate cases.
Why Regular Nephrologist Review Matters
Dialysis is not a fixed treatment that should remain unchanged indefinitely.
A patient's needs can change over time.
The nephrologist may periodically review:
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Blood pressure
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Body weight
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Fluid status
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Laboratory results
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Dialysis adequacy
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Vascular access
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Medications
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Nutrition
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Anemia
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Bone and mineral health
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Cardiovascular health
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Transplant eligibility where appropriate
Regular review helps identify problems before they become more serious.
Dialysis Problem Evaluation at Prabhakar Bhurke Clinic
At Prabhakar Bhurke Clinic, Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician, provides individualized nephrology care for patients experiencing kidney failure and dialysis-related concerns.
Depending on the clinical situation, evaluation may include:
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Review of symptoms during and after dialysis
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Blood-pressure assessment
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Fluid-status evaluation
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Review of dialysis records
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Kidney-function and electrolyte monitoring
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Assessment of anemia
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Vascular-access problem evaluation
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Infection assessment
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Medication review
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Dialysis adequacy assessment
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Management planning for recurring dialysis complications
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Evaluation for kidney transplantation when appropriate
The aim is to understand why the dialysis problem is occurring and determine whether the treatment plan needs modification.
Frequently Asked Questions
What are the most common dialysis problems?
Common problems can include low blood pressure, muscle cramps, fatigue, nausea, headache, access complications, infection and fluid-management difficulties.
Why do I feel weak after dialysis?
Post-dialysis weakness can have several causes, including fluid removal, blood-pressure changes, anemia, nutritional problems and other medical conditions. Repeated or severe weakness should be evaluated.
Why does blood pressure drop during dialysis?
Blood pressure may fall when fluid is removed faster than the circulation can compensate. Medicines, heart conditions and other factors can also contribute.
What should I do if I have cramps during dialysis?
Tell the dialysis team when cramps occur. They can assess fluid removal and other treatment factors. Do not independently increase salt or fluid intake.
Can dialysis damage the body?
Dialysis is a life-supporting treatment for people who need kidney replacement therapy, but complications can occur. Careful monitoring and individualized treatment can help manage these risks.
Can dialysis be stopped if there are problems?
Do not stop dialysis independently. The nephrologist should determine whether the problem can be addressed by changing the dialysis prescription, treating another condition or considering an alternative kidney replacement strategy.
What are signs of dialysis access infection?
Redness, warmth, swelling, pain, discharge, fever or chills around the access can indicate infection and require prompt medical assessment.
Why am I gaining weight between dialysis sessions?
For patients with little residual urine production, much of the weight gained between treatments can represent fluid accumulation. The dialysis team can assess the appropriate target weight and fluid-management plan.
Can dialysis patients have kidney transplantation?
Some patients receiving dialysis may be candidates for kidney transplantation. Eligibility depends on medical assessment and other transplant-related factors.
Conclusion
A dialysis problem should not simply be considered an unavoidable part of kidney failure.
Symptoms such as low blood pressure, muscle cramps, weakness, nausea, excessive fluid gain or dialysis-access problems can have different causes. Identifying the cause is important because some problems may be reduced by adjusting the dialysis prescription, reviewing medicines, treating infection, improving access care or addressing another underlying medical issue.
Patients receiving dialysis should report recurring or severe symptoms to their healthcare team rather than changing fluid intake, medicines or dialysis sessions on their own.
With regular nephrologist review, appropriate monitoring and individualized dialysis management, many treatment-related problems can be identified and addressed early.
For specialist evaluation of dialysis-related concerns, kidney failure and long-term kidney care, Prabhakar Bhurke Clinic provides nephrology services under Dr. Sandip Prabhakar Bhurke, super specialist nephrologist and transplant physician.
Medical Disclaimer
This article is intended for general educational and informational purposes only and should not be considered medical advice, diagnosis or treatment. Dialysis complications can have multiple causes, and the appropriate management depends on the patient's dialysis modality, medical history, laboratory results, fluid status, medications and overall health. Do not change or stop dialysis, medicines, fluid intake or diet without guidance from the treating healthcare professional. Severe breathlessness, chest pain, fainting, confusion, seizures, uncontrolled bleeding, sudden loss of fistula function, high fever with chills, severe abdominal pain or cloudy peritoneal dialysis fluid may require urgent medical attention. For individualized advice, consult Dr. Sandip Prabhakar Bhurke or another qualified nephrologist.
