Kidney failure at the end of life can involve pain, but the experience varies enormously depending on the stage of decline, the symptoms a person develops, and whether they receive adequate palliative care. A systematic review of chronic kidney disease patients on hemodialysis found that about 60% experienced chronic pain overall, with roughly one in five reporting severe pain.1PubMed Central. The Prevalence and Severity of Chronic Pain in Patients With Chronic Kidney Disease: A Systematic Review and Meta-Analysis That said, pain is only one dimension of suffering in kidney failure, and the final days often bring a paradoxical shift: as toxins accumulate in the blood, consciousness dims, and many patients become less aware of discomfort. The honest answer is that unmanaged kidney failure can be painful, but it does not have to be, and the details matter more than a simple yes or no.
Where the Pain Comes From
Kidney failure does not produce pain in the way a broken bone does. The kidneys themselves usually do not hurt as they lose function (unlike, say, kidney stones, which are intensely painful). Instead, the pain associated with dying from kidney failure comes from what happens to the rest of the body once the kidneys can no longer filter waste and regulate fluid balance. Several distinct mechanisms overlap.
The most widespread source of discomfort is uremic neuropathy, a type of nerve damage caused by the buildup of waste products in the blood. It typically starts as tingling, numbness, or burning in the feet and hands and can progress to deep, persistent pain. Research shows that nerves in patients with advanced kidney disease exist in a chronically over-excited state, partly driven by elevated potassium levels that alter how nerve membranes behave.2PubMed. Uremic neuropathy: clinical features and new pathophysiological insights On a cellular level, the waste product urea itself appears to sensitize pain-sensing neurons directly, amplifying their response to stimuli that would normally be mild.3PubMed Central. The role of urea in neuronal degeneration and sensitization: An in vitro model of uremic neuropathy The clinical picture is a distal, symmetric polyneuropathy, meaning it affects both sides of the body and worsens toward the extremities, driven by progressive damage to nerve fibers in the longest nerve trunks.4Pain. Uremic Neuropathy
Bone and joint pain is another common burden. As kidney function declines, the body loses its ability to properly handle calcium and phosphorus, leading to changes in bone structure known collectively as renal osteodystrophy. Bones can become thin, brittle, or abnormally soft, and fractures may occur with little trauma. A prospective study of dialysis patients recorded bone fractures at a rate of about 4.4% per year, along with high hospitalization rates.5PubMed Central. Renal osteodystrophy and clinical outcomes: a prospective cohort study Patients often describe aching joints, muscle cramps, and deep bone pain, especially in the hips, back, and legs. These symptoms tend to be chronic and grinding rather than sharp, but they significantly erode quality of life.
The Itch That Rivals Pain
One of the most underappreciated sources of suffering in kidney failure is not technically pain at all: it is pruritus, a relentless, maddening itch that can be just as distressing. Kidney disease-associated itching is thought to arise from a tangle of causes, including dry skin, chronic inflammation, neuropathic sensitization, an imbalance in the body’s own opioid signaling system, and the accumulation of uremic toxins that the kidneys can no longer clear.6NefrologÃa (English Edition). Etiopathogenesis of chronic kidney disease-associated pruritus: putting the pieces of the puzzle together More recent work has framed it as a neuroimmune problem, with multiple overlapping pathways in the skin, nerves, and brain all contributing.7PubMed. The neuroimmune architecture of uremic pruritus: mechanisms and therapeutic targeting
For patients nearing the end of life, this itch can be severe enough to disrupt sleep, cause bleeding from scratching, and trigger depression. Antihistamines, the typical first-line remedy for itching, often fail to help because the itch in kidney failure is not primarily driven by histamine. A network meta-analysis of systemic treatments found gabapentin had the highest likelihood of being the most effective drug for this type of itch among hemodialysis patients.8PubMed Central. Efficacy and safety of different systemic drugs in the treatment of uremic pruritus among hemodialysis patients: a network meta-analysis based on randomized clinical trials Gabapentin studies have shown large improvements on itch severity scales, though side effects like drowsiness and dizziness are common.9PubMed Central. Gabapentin for uremic pruritus in hemodialysis patients: a qualitative systematic review A newer drug called difelikefalin, which works on the body’s kappa-opioid receptors, showed meaningful itch relief in a large clinical trial, with about half of treated patients achieving a clinically significant reduction in itch scores compared to roughly a quarter on placebo.10PubMed. A Phase 3 Trial of Difelikefalin in Hemodialysis Patients with Pruritus The fact that pharmaceutical companies have invested in developing new drugs specifically for uremic itch gives you a sense of how severe and poorly controlled the problem has been historically.
What Happens in the Final Days
For many people, what matters most is the very end: the hours and days before death. The trajectory depends on whether a patient dies while on dialysis, after voluntarily stopping dialysis, or after never starting it. Each path feels different.
When someone on dialysis chooses to stop treatment, death usually follows within a week or two, sometimes sooner. A study of 131 patients who died after discontinuing dialysis found that pain and agitation were the most common symptoms during the last day of life.11Elsevier / American Journal of Kidney Diseases. Dialysis discontinuation and palliative care That finding deserves some context, though. “Most common” does not mean “universal” or “uncontrollable.” In hospice and palliative-care settings, these symptoms are anticipated and treated. The same study gathered information prospectively, meaning the medical teams were actively monitoring and managing symptoms as they emerged.
A crucial factor in how the final days feel is the development of uremic encephalopathy, a brain-fog syndrome caused by the rising tide of toxins in the blood. As waste products accumulate, the person may become drowsy, confused, or increasingly detached from their surroundings. Symptoms range across a wide spectrum: early signs include trouble concentrating, memory lapses, irritability, and fatigue, while more advanced stages can involve lethargy, muscle twitching (myoclonus), seizures, and eventually coma.12Kidney International. Review Uremic encephalopathy – Section: Clinical Features The myoclonic jerks seen in late-stage uremia can be distressing for family members to witness, even though the patient may not be fully conscious.13PubMed Central. Acute Myoclonic Jerk Terminated by A Simple Procedure – A Case Report
This progressive clouding of awareness is, in a grim way, part of the body’s own anesthesia. Many patients slip into a state of deep drowsiness or unconsciousness before death, meaning they are unlikely to be fully experiencing pain in those final hours. Families are often told that while the body may show signs of distress like restlessness or irregular breathing, the person’s subjective experience is probably much less intense than it appears from the outside. That gap between what observers see and what the dying person feels is one of the hardest things about being at the bedside.
The Challenge of Pain Management in Kidney Failure
Treating pain in someone whose kidneys have failed is trickier than in most other situations, because the kidneys are responsible for clearing many medications from the body. When they stop working, drugs and their breakdown products accumulate, raising the risk of dangerous side effects. This is especially true of opioids, the strongest class of painkillers.
Morphine is the most familiar opioid, but it is one of the worst choices for patients with severe kidney disease. The body converts morphine into metabolites that the kidneys normally excrete, and when those metabolites build up, they can cause excessive sedation, confusion, and even respiratory failure. Safer alternatives include fentanyl, buprenorphine, oxycodone, hydromorphone, and methadone, all of which are processed in ways that depend less on kidney clearance.14PubMed Central. Pain management in patients with chronic kidney disease and end-stage kidney disease Buprenorphine in particular has attracted attention because it is broken down by the liver into clinically unimportant byproducts, making it a relatively safe option even when kidney function is essentially zero. Transdermal buprenorphine and fentanyl patches, which deliver medication steadily through the skin, are both recommended for patients with advanced kidney disease and do not need dose adjustments based on kidney function.15PubMed Central. Opioid Management in Older Adults with Chronic Kidney Disease: A Review
The practical problem is that not all patients receive this kind of careful pain management. In under-resourced settings, or when kidney failure is not being managed by a team familiar with renal palliative care, patients may be given drugs that accumulate dangerously or may be undertreated for pain because clinicians are unsure what is safe to prescribe. The evidence is clear that good symptom control is achievable, but achieving it requires attention to the pharmacology and a willingness to use opioids when they are warranted.
Non-Drug Approaches and Palliative Philosophy
Pain management guidelines for end-stage kidney disease emphasize starting with non-pharmacological measures before reaching for medications. These include physical interventions like heat or cold therapy, massage, and gentle exercise, as well as psychological approaches like cognitive behavioral therapy, meditation, and music therapy.16PubMed. Management of pain in end-stage renal disease patients: Short review None of these replace strong painkillers when they are needed, but they can reduce the total medication burden and address aspects of suffering that drugs do not touch, like isolation, fear, and loss of autonomy.
Conservative kidney management, the decision to treat kidney failure without dialysis and focus entirely on comfort, has become an increasingly accepted path, especially for frail older adults for whom dialysis would offer limited survival benefit and considerable burden. Recommendations for conservative management emphasize preserving cognitive and physical function, managing symptom burden, and allowing priorities to shift over time as the illness progresses.17PubMed Central. Recommendations for the Care of Patients Receiving Conservative Kidney Management: Focus on Management of CKD and Symptoms The focus is on the person’s values: what matters most to them, what they are willing to endure, and what quality of life means in their specific situation. When done well, conservative management means the patient is never without symptom support, from the early stages of declining function through to death.
The Emotional and Psychological Dimension
Pain is not purely physical, and kidney failure has a heavy psychological toll. Adults with kidney disease are roughly three times more likely to experience serious psychological distress than people without it.18Preventing Chronic Disease (CDC). Mental Health Symptoms and Receipt of Mental Health Care Among US Adults Diagnosed With Kidney Disease Depression, anxiety, and grief over lost independence and lost function compound whatever physical symptoms are present. This psychological distress can amplify the perception of physical pain, creating a feedback loop that makes everything worse.
Caregivers experience their own form of suffering. Research has found that caregiver burden correlates with how caregivers perceive the patient’s suffering, both physically and mentally.19Annals of Military and Health Sciences Research. The Role of Caregiver Burden in Quality of Life and Perception of Patients with Chronic Kidney Failure on Hemodialysis A caregiver who is exhausted and overwhelmed may interpret the patient’s experience as more painful than it is, or, just as problematically, may not recognize pain that the patient cannot easily communicate. Families watching someone die of kidney failure often struggle with whether the person is comfortable, especially once the patient is too drowsy to speak. Good palliative care teams address this by regularly communicating with the family about what they are observing and what the patient’s likely experience is.
When Dying From Kidney Failure Looks Different Than Expected
People often imagine death from organ failure as a dramatic, agonizing process. The reality of kidney failure tends to be more gradual and less visually intense than many fear. The toxins that accumulate act as sedatives on the brain, so the final phase often involves increasing sleepiness rather than increasing distress. Some patients describe feeling peaceful in the days after stopping dialysis, though others experience nausea, restlessness, or discomfort that needs active management.
One common misconception is that the body “poisons itself” in a way that feels like being poisoned, as though the patient would experience burning or acute agony. Uremia does not work that way. The buildup is gradual, and many of its effects are neurological rather than sensory: confusion and lethargy are more characteristic than sharp pain. Another misconception is that stopping dialysis means choosing to suffer. In practice, stopping dialysis is usually accompanied by a transition to hospice care, where symptom management becomes the entire focus. Patients who stop dialysis under hospice supervision typically receive more aggressive comfort care than they were getting while on dialysis, not less.
Fluid overload can be one of the more physically uncomfortable aspects of the final days. When the kidneys cannot remove water, fluid can accumulate in the lungs, causing a sensation of breathlessness that patients and families find distressing. This is manageable with medications and positioning, but it requires proactive attention from the care team. Breathlessness in the last days of life is arguably a bigger source of distress than pain for many dying patients, across many diseases, and kidney failure is no exception.
What Families Can Do
If you are facing this situation with a loved one, a few practical points are worth knowing. First, palliative care referral can happen at any point during kidney disease, not just at the very end. Studies consistently show that early involvement of palliative-care specialists improves symptom control and quality of life. Second, if your loved one is considering stopping dialysis, a conversation with a palliative-care team before making that decision can help set expectations and put a comfort plan in place in advance. Third, do not assume that visible signs of distress like twitching, restless movements, or noisy breathing mean the person is in pain. These reflexive responses often persist after conscious awareness has faded. Ask the care team to explain what they are seeing.
Finally, you should know that the question you are asking, whether this death will be painful, is one of the most common questions families bring to palliative-care clinicians, and the medical community has gotten substantially better at addressing it over the past two decades. The evidence base for managing pain, itching, agitation, and breathlessness in kidney failure is more robust than it was even ten years ago, and the shift toward viewing comfort as a primary goal of care, not a concession, has changed how many patients experience the end of their lives.