Kidney failure means the kidneys can no longer remove waste and extra fluid well enough to keep the body in balance. Early symptoms of kidney failure can include tiredness, swelling in the legs or around the eyes, nausea, itching, and changes in how much you urinate. It can happen suddenly over hours to days, or develop slowly over months to years, and it is most common in older adults and in people with diabetes, high blood pressure, or severe kidney disease. Not everyone will have the same experience. Kidney failure can be life threatening without treatment, but many people live for years with dialysis, careful medical care, or a kidney transplant.
How many people live with Kidney failure?
Worldwide, about 4 million people are living with kidney failure and getting dialysis, although the true number is likely higher because global counts vary and may not fully include people living with a kidney transplant (Fresenius Medical Care, 2023). In the United States, about 808,000 people are living with kidney failure, including people on dialysis and those living with a kidney transplant (CDC, 2023).
Overview
Kidney failureSymptoms
Kidney failure can cause swelling in the legs or around the eyes, tiredness, nausea, itching, and less urine. Early symptoms of kidney failure can be subtle, such as poor appetite, trouble concentrating, or feeling short of breath.
Outlook and prognosis
With kidney failure, outlook depends on the cause, overall health, and whether dialysis or a kidney transplant is possible. Many people with kidney failure live for years with treatment, but day-to-day health can still be fragile and needs close follow-up.
Causes and risk factors
Kidney failure is often linked to diabetes, high blood pressure, severe infections, autoimmune disease, blocked urine flow, or reduced blood supply to the kidneys. Risk rises with older age, family history, smoking, obesity, heavy painkiller use, dehydration, and exposure to toxins.
Genetic influences
Genetics can be very important in kidney failure, especially when it starts young, runs in families, or has no clear cause. Some genetic variations raise risk directly, while others affect how fast kidney failure progresses.
Diagnosis
Kidney failure is diagnosed with blood and urine tests that check how well the kidneys are filtering. Doctors also review symptoms, blood pressure, and sometimes use ultrasound or other imaging to look for the cause.
Treatment and drugs
Kidney failure treatment often centers on dialysis to filter waste and extra fluid, or a kidney transplant when possible. Medicines may help control blood pressure, swelling, anemia, bone problems, and symptoms such as nausea or itching.
Symptoms
Kidney failure can show up in everyday life as low energy, swelling, stomach upset, or changes in how often you urinate. Symptoms vary from person to person and can change over time. In some people, especially when kidney failure develops slowly, the early symptoms of kidney failure are mild and easy to mistake for stress, aging, or another health problem.
When the kidneys are not clearing waste well, many people feel worn out, weak, or unusually tired. Simple tasks like climbing stairs, shopping, or getting through a workday can take much more effort.
Extra fluid can collect in the feet, ankles, legs, hands, or around the eyes. Shoes, socks, or rings may suddenly feel tighter, and the scale may go up from fluid weight.
Kidney failure can make you pass much less urine, or sometimes change how often you go, especially at night. The urine may look foamy, darker, or different than usual.
Extra fluid and low red blood cell levels can leave people with kidney failure short of breath. Walking short distances, climbing stairs, or lying flat may feel harder.
How people usually first notice Kidney failure?
Kidney failure often comes into view quietly, with changes that are easy to brush off at first: you may feel unusually tired, notice swelling in your feet, ankles, or around the eyes, or see that you are urinating less, more often at night, or in a way that looks foamy. Many people first notice kidney failure through symptoms that seem general rather than dramatic, such as nausea, loss of appetite, itching, muscle cramps, trouble concentrating, or shortness of breath from fluid building up. Because these first signs of kidney failure can mimic many other conditions, it is often first picked up when blood and urine tests show the kidneys are no longer filtering waste and fluid the way they should.
Types of Kidney failure
Kidney failure can affect daily life in very different ways, from suddenly making someone feel very unwell over a few days to causing slow changes that build up over months or years. In medical terms, these are called acute and chronic kidney failure, which describe how quickly the kidneys lose their ability to filter waste and extra fluid. Symptoms may overlap, but the timing, triggers, and pattern often differ. Knowing the types of kidney failure can make early symptoms of kidney failure easier to spot and discuss with a healthcare provider.
Acute kidney failure
This type develops quickly, often over hours to days, and may happen during a severe illness, dehydration, infection, or after exposure to certain medicines. People with acute kidney failure may notice sudden swelling, much less urine, nausea, shortness of breath, or confusion. If the cause is treated promptly, kidney function can sometimes improve partially or fully.
Chronic kidney failure
This type develops slowly over months to years, usually as a result of long-term conditions such as diabetes or high blood pressure. Many living with chronic kidney failure may feel tired, itchy, weak, or notice poor appetite, sleep problems, leg swelling, or needing to urinate more at night, especially as kidney damage becomes more advanced. Symptoms do not always appear early, which is why chronic kidney failure can go unnoticed for a long time.
Can I slow down the onset of symptoms?
Yes, often to a point: if kidney failure has not happened yet, treating long-term kidney disease early can slow the loss of kidney function and delay symptoms, but it cannot always prevent kidney failure. The best-supported steps are keeping blood pressure and blood sugar well controlled, not smoking, staying active, eating less salt, keeping a healthy weight, and avoiding medicines that can harm the kidneys, especially common pain relievers like ibuprofen and naproxen unless a doctor says they are safe for you. Regular blood and urine checks and the right prescription medicines for conditions like high blood pressure or diabetes can also protect the kidneys, and while these steps do not guarantee prevention, they may buy valuable time.
What genetics can tell you about symptoms
Genetics can sometimes help explain why kidney failure starts earlier in some people, progresses faster in others, or happens along with other health problems such as hearing changes, vision problems, cysts, or swelling. In inherited kidney conditions, a gene change may shape which symptoms show up, how severe they are, and when they begin, but the same genetic condition can still affect family members differently. For many people living with kidney failure, though, symptoms are also strongly influenced by the underlying cause, other medical conditions, and how much kidney function remains, so genetics is only one part of the picture.
Causes and risk factors
Kidney failure often develops after years of damage from other health problems. The most common causes of kidney failure are diabetes and high blood pressure. Other causes include severe infections, blocked urine flow, and immune conditions that inflame the kidneys. Family history can be one part of the story, but lifestyle and environment add their own chapters. Smoking, obesity, some medicines or toxins, and inherited conditions such as polycystic kidney disease can also raise the risk.
What are the most common causes or risk factors?
Most kidney failure is caused by long-term damage from diabetes and high blood pressure, especially when they are not well controlled. Risk is also higher with older age, obesity, heart disease, smoking, frequent use of pain relievers like ibuprofen or naproxen, and repeated kidney problems such as infections, kidney stones, or blocked urine flow. Some people also have a higher inherited risk because certain kidney diseases run in families.
Environmental and biological risk factors
Kidney failure becomes more likely when the kidneys are damaged over time or suddenly stressed by illness, low blood flow, or harmful exposures. Doctors often group risks into internal (biological) and external (environmental). Knowing the main risk factors for kidney failure can help make sense of why some people need closer monitoring, especially during other health problems or hospital stays.
High blood sugar can slowly damage the tiny filters in the kidneys. Over time, this is one of the most common biological risks for kidney failure.
Ongoing high blood pressure can strain and scar blood vessels inside the kidneys. This can quietly raise the risk of kidney failure over many years.
Kidney function naturally becomes less resilient with age. For many older adults, this means a higher chance that illness, dehydration, or medicines could trigger kidney failure.
Conditions such as heart failure or advanced liver disease can reduce steady blood flow to the kidneys. When the kidneys do not get enough blood, they may stop working properly.
Genetic risk factors
Kidney failure can sometimes run in families because certain gene changes affect how the kidneys form or how well they filter blood over time. Some inherited conditions directly damage kidney tissue, while others mainly raise the chance that kidney disease starts earlier or progresses faster. Some risk factors are inherited through our genes. Knowing your family history or a genetic diagnosis can help explain why kidney problems appear in several relatives or at a younger age.
Family history: A strong family history of dialysis, kidney transplant, or kidney disease can point to genetic risk factors for kidney failure. The clue is stronger when several relatives are affected or when kidney problems start at a younger age.
Polycystic kidneys: In autosomal dominant polycystic kidney disease, inherited gene changes cause many fluid-filled cysts to grow in the kidneys. Over time, these cysts can crowd healthy tissue and lead to serious loss of kidney function.
Alport syndrome: Alport syndrome is an inherited condition that weakens the tiny filters in the kidneys. Many living with it have blood or protein in the urine, and some also develop hearing or eye problems. Over time, kidney function can get worse.
APOL1 variants: Certain APOL1 gene variants can raise the risk of kidney disease and kidney failure, especially in people with recent African ancestry. Having these variants does not mean someone will definitely develop kidney disease.
Birth differences: Some inherited gene changes affect how the kidneys or urinary tract develop before birth. These differences can leave someone with less kidney reserve, which may increase the chance of kidney problems later in life.
Rare inherited disorders: A smaller group of inherited disorders can damage the kidney filters or cause certain substances to build up in the kidneys. These conditions are uncommon, but they can lead to chronic kidney disease, often starting in childhood or early adulthood.
Lifestyle risk factors
Several day-to-day habits can raise the chance of chronic kidney damage progressing to kidney failure or can speed worsening in people who already have kidney disease. The main lifestyle risk factors for kidney failure are those that strain blood vessels, raise blood pressure or blood sugar, cause repeated dehydration, or expose the kidneys to avoidable injury. Understanding how lifestyle affects kidney failure is especially important because some risks are modifiable even after kidney disease has begun.
Regularly eating a lot of salt can increase blood pressure and make the kidneys work harder. Over time, this can speed kidney damage and raise the risk of kidney failure.
Diets high in ultra-processed foods, added sugars, and unhealthy fats can worsen diabetes, hypertension, and obesity, which are major drivers of kidney damage. Low intake of fruits, vegetables, and fiber may also make blood pressure and metabolic control harder to manage.
Too little exercise raises the risk of high blood pressure, type 2 diabetes, and excess weight, all of which can harm the kidneys over time. Regular activity helps support vascular health and can slow the progression of chronic kidney disease.
Overweight and obesity increase the likelihood of diabetes and hypertension and can directly stress the kidneys through hyperfiltration. This added strain can contribute to faster loss of kidney function.
Risk prevention
Kidney failure often develops after years of damage from common health problems such as diabetes and high blood pressure, although some cases happen suddenly during severe illness or dehydration. In day-to-day life, prevention usually means protecting the kidneys before damage builds up and treating problems early when it does. Prevention is about lowering risk, not eliminating it completely. This also matters if you have early symptoms of kidney failure, because prompt care may slow or limit further harm.
Keeping diabetes well managed is one of the most important ways to lower the risk of kidney failure. High blood sugar can quietly damage the kidney filters over time, even before you feel unwell.
Treating high blood pressure helps protect the tiny blood vessels that let the kidneys clean the blood. For many living with kidney failure risk, regular checks and taking prescribed medicine as directed can make a real difference.
Eating a balanced diet, staying active, and keeping a healthy weight can lower the chance of both diabetes and high blood pressure, which are major causes of kidney failure. Alongside medical care, everyday habits also matter.
Smoking can reduce blood flow to the kidneys and speed up kidney damage. Quitting may also help protect the heart and blood vessels, which are closely linked to kidney health.
Can you prevent Kidney failure?
Kidney failure cannot always be prevented, because it can happen suddenly after a serious illness or injury or develop for reasons you cannot control. But many cases can be delayed or sometimes avoided by keeping diabetes and high blood pressure under good control, not smoking, and being careful with long-term use of common pain relievers like ibuprofen unless your doctor says they are safe for you. Regular checkups can also help catch kidney problems early, especially for people living with diabetes, high blood pressure, or a family history of kidney disease.
Transmission
Kidney failure is not contagious, so it cannot be passed from one person to another through coughing, touching, sex, shared food, or everyday contact. If you are wondering how kidney failure is inherited, the short answer is that kidney failure itself usually is not inherited, although some diseases that can lead to it may run in families.
For many living with kidney failure, it develops because of problems such as diabetes, high blood pressure, long-term kidney disease, severe infection, injury, or certain medicines. In other words, the family link, when there is one, is usually in the underlying cause rather than kidney failure itself.
When to test your genes
Genetic testing is most useful if kidney failure or chronic kidney disease runs in your family, starts at a young age, or is unexplained, especially with cysts, blood in the urine, or hearing or vision changes. In those situations, results can clarify the cause, guide treatment, and help relatives decide whether they should be tested too.
Diagnosis
Kidney failure is diagnosed by combining symptoms, an exam, and tests that show how well the kidneys are filtering waste and balancing fluids. For many, the first step comes when everyday activities start feeling harder, such as swelling in the legs, nausea, or unusual tiredness that does not improve with rest. Doctors usually begin by checking for common causes and signs of kidney damage, then use lab tests and imaging to confirm the diagnosis of kidney failure. Some diagnoses are clear after a single visit, while others take more time.
A clinician asks about symptoms such as fatigue, swelling, shortness of breath, changes in urination, and itching. They also review conditions that raise risk, including diabetes, high blood pressure, infections, dehydration, and use of certain medicines.
The exam looks for fluid buildup, high blood pressure, weight changes, and signs of dehydration or heart strain. Findings such as ankle swelling, crackles in the lungs, or confusion can help show how severely kidney failure is affecting the body.
Blood tests measure creatinine and urea, which rise when the kidneys are not clearing waste well. Doctors also check electrolytes, acid-base balance, and estimated filtration rate to understand how serious the problem is and to support how kidney failure is diagnosed.
Urine testing can show protein, blood, infection, or very concentrated or very dilute urine. These clues help separate kidney failure from bladder problems and can point toward the underlying cause.
How is Kidney failure diagnosed?
Kidney failure is usually diagnosed with blood and urine tests that show how well the kidneys are clearing waste and keeping the right balance of fluids and salts. Doctors also look at your symptoms, blood pressure, swelling, how much urine you are making, and your medical history, and they may use an ultrasound to check the size and shape of the kidneys or look for a blockage. If the cause is still unclear, more tests such as a small tissue sample from the kidney may be needed, and genetic testing is only used in some people when an inherited kidney problem is suspected.
Stages of Kidney failure
Kidney failure is usually discussed as the final stage of chronic kidney disease, a long-term loss of kidney function that often develops over time. In practice, doctors track this progression in 5 stages based mainly on how well the kidneys filter waste from the blood. Early and accurate diagnosis helps you plan ahead with confidence.
Stage 1
Kidney function is still near normal, but there are signs of kidney damage such as protein in the urine or changes on imaging tests. Most people have no symptoms at this stage. Kidney failure is not present, but follow-up is important.
Stage 2
Kidney function is mildly reduced, and signs of ongoing kidney damage are still present. Many living with kidney failure risk factors, such as diabetes or high blood pressure, may still feel well. Regular blood and urine tests help track whether the condition is getting worse.
Stage 3
Kidney function is moderately reduced, and this stage is often divided into 3a and 3b depending on severity. Some may notice swelling, tiredness, changes in urination, or other early symptoms of kidney failure, although many symptoms are still mild. Complications such as anemia or bone and mineral problems may begin.
Stage 4
Kidney function is severely reduced, and waste products can start to build up more clearly in the body. People with kidney failure at this point may feel more tired, itchy, nauseated, or short of breath. Planning for possible dialysis, transplant, or other treatment often begins here.
Stage 5
This is kidney failure, sometimes called end-stage kidney disease, where the kidneys can no longer do enough to keep the body in balance. Symptoms are often more noticeable and can affect daily life, including severe fatigue, poor appetite, swelling, and trouble concentrating. Many people need dialysis or a kidney transplant, although care is individualized.
Outlook and prognosis
The outlook for kidney failure depends largely on the cause, how advanced it is, and whether treatment such as dialysis or kidney transplantation is available and effective. Without treatment, advanced kidney failure is life-threatening and can lead to death within days to weeks from complications such as fluid overload, dangerous electrolyte imbalances, or buildup of toxins. With ongoing dialysis, many people live for years, but survival is generally shorter than in the general population because of risks such as heart disease, infection, and stroke. A successful kidney transplant usually offers the best long-term prognosis and quality of life, although it also carries risks related to surgery, rejection, and lifelong immunosuppressive medicines. Prognosis is often better when kidney failure is recognized early, underlying conditions like diabetes or high blood pressure are well controlled, and complications are closely managed.
Long-term effects
Kidney failure can affect much more than the kidneys over time. Waste and extra fluid can build up in the body, which may strain the heart, nerves, bones, blood, and brain. For many, symptoms can change from day to day, especially if kidney failure is advanced or treatment is delayed. Long-term outlook often depends on the cause, overall health, and whether dialysis or a kidney transplant is possible.
Kidney failure often raises the risk of high blood pressure, heart disease, and heart failure over time. Extra fluid and salt can make the heart work harder and may also lead to swelling or shortness of breath.
Damaged kidneys have trouble keeping calcium, phosphorus, and vitamin D in balance. Over time, this can lead to weak bones, bone pain, and a higher chance of fractures.
Kidney failure can lower the body's ability to make enough red blood cells. Many people living with kidney failure feel ongoing tiredness, weakness, dizziness, or reduced stamina because of this.
Waste buildup can irritate or damage nerves over time. This may cause burning feet, numbness, restless legs, muscle cramps, or trouble with concentration and clear thinking.
How is it to live with Kidney failure?
Living with kidney failure can reshape the rhythm of everyday life, from managing fatigue, swelling, and dietary limits to planning work, travel, and social time around frequent medical visits or dialysis treatments. For many people with kidney failure, this can also bring emotional strain, because symptoms may be invisible to others while the daily demands are constant. It often affects the whole household, with family or friends helping with appointments, medications, meals, and emotional support, yet many people still find ways to maintain routines, relationships, and a strong sense of independence with the right care and support.
Treatment and drugs
Kidney failure treatment is aimed at doing the jobs the kidneys can no longer do well, such as removing waste, balancing fluids and minerals, and helping control blood pressure. Depending on the cause and how severe it is, care may include medicines to treat swelling, high blood pressure, anemia, bone problems, or high potassium, along with careful changes in diet and fluid intake. Some treatments fit easily into your routine, while others are more involved, such as dialysis, which filters the blood when the kidneys cannot keep up. For many living with kidney failure, a kidney transplant may be the best long-term option if they are healthy enough and a suitable donor is available. Not every treatment works the same way for every person, so doctors adjust the plan over time based on symptoms, lab results, and how kidney failure affects daily life.
Can you cure Kidney failure?
It depends on the type of kidney failure. Sudden kidney failure can sometimes get better if the cause is found and treated quickly, but long-term kidney failure usually cannot be cured. When there is no cure, treatment such as medicines, dialysis, and sometimes a kidney transplant can help do the work of the kidneys, ease symptoms, and help people live longer and feel better.
Non-drug treatment
Living with kidney failure often means planning daily life around energy levels, swelling, appetite, and regular medical care. Non-drug treatments focus on doing the work the kidneys can no longer do, protecting the rest of the body, and helping people stay as active and comfortable as possible. For many, treatment begins not at the pharmacy, but with dialysis, food and fluid changes, and support from a care team.
This treatment filters waste, extra fluid, and salts from the blood through a machine when the kidneys can no longer keep up. It is usually done several times a week at a center or at home, and many people with kidney failure build their routine around these sessions.
This option uses the lining of the belly to clean the blood through fluid placed into the abdomen and then drained out. It is often done at home, which can offer more flexibility for work, school, or sleep schedules.
A transplant places a healthy kidney from a donor into the body so it can take over much of the lost kidney function. For some people, it offers more freedom and energy than dialysis, but it involves testing, surgery, and long-term follow-up.
A kidney dietitian can help adjust protein, sodium, potassium, phosphorus, and calories to fit your lab results and treatment plan. This can help with swelling, bone health, and some early symptoms of kidney failure, such as nausea, poor appetite, and fatigue.
Your genes may have an impact on how drugs work for you
Small inherited differences can change how your body handles some medicines used in people with kidney failure, so one person may get good results at a usual dose while another may have more side effects or need a different amount. This can matter with certain pain medicines, blood thinners, and anti-rejection medicines after a kidney transplant, because the body may break them down faster or slower than expected. For many living with kidney failure, doctors rely first on kidney function, lab tests, and symptoms, but in some cases genetic testing, called pharmacogenomics, can help choose a safer dose or a better-fit medicine.
Pharmacological treatments
In kidney failure, medicines are often used to manage problems the kidneys can no longer handle on their own, such as fluid buildup, high blood pressure, anemia, bone and mineral imbalance, and high potassium. The exact treatment plan depends on whether the kidney failure is sudden or long term, what stage it is at, and what is causing it. Drug treatments are not about fixing everything at once, but about lowering strain on the body and helping people feel better and stay safer while other care continues. Some medicines are used mainly in chronic kidney disease before or during advanced kidney failure, while others are used urgently when symptoms or blood test changes become dangerous.
Diuretics such as furosemide, bumetanide, and torsemide can help the body get rid of extra salt and water. For many living with kidney failure, this may ease swelling in the legs, shortness of breath, or rapid weight gain from fluid buildup.
ACE inhibitors such as lisinopril and enalapril, and ARBs such as losartan and valsartan, are often used to control blood pressure and lower protein loss in the urine. They can protect kidney function earlier in disease, but in advanced kidney failure they need close monitoring because they may raise potassium or creatinine.
Sodium zirconium cyclosilicate, patiromer, and older sodium polystyrene sulfonate are used when potassium levels are too high. These drugs help remove potassium through the gut, which can be important because one of the early symptoms of kidney failure can be weakness or an abnormal heartbeat linked to high potassium.
Epoetin alfa, darbepoetin alfa, and methoxy polyethylene glycol-epoetin beta help the body make more red blood cells when kidney failure causes anemia. Iron treatments, often iron sucrose or ferric carboxymaltose, may also be needed because these medicines work best when iron stores are adequate.
Genetic influences
When kidney failure affects several relatives, many people wonder whether genes may be part of the story. It’s natural to ask whether family history plays a role. Some inherited kidney conditions, including polycystic kidney disease and Alport syndrome, can slowly damage the kidneys over time and lead to kidney failure, and genes may also influence risk for problems like high blood pressure that put extra strain on the kidneys. Not everyone with a family history will develop kidney failure, because medicines, blood pressure control, diabetes, infections, and other health factors also matter. If kidney failure happens at a younger age or without a clear reason, looking for the genetic causes of kidney failure through genetic counseling or testing may help explain it and guide care for both you and your family.
Is Kidney failure genetic?
Genetics can be very important in kidney failure, especially when it starts young, runs in families, or has no clear cause. Some genetic variations raise risk directly, while others affect how fast kidney failure progresses.
Having a genetic risk is not necessarily a diagnosis
Changes in genes are a normal part of human biology and are common across the general population. Most of these variants do not directly affect health and simply reflect the natural diversity seen in people. In many genes, having a variant connected with a condition points to a possible link rather than a certain diagnosis, especially when several genes and environmental factors also play a role. In some situations, though, one well-characterized variant in a particular gene is enough to confirm the diagnosis.
Pharmacogenetics—how genetics influence drug effects
People living with kidney failure often take several medicines, and the safest dose is not always the same for everyone. If you have wondered how genetics affect kidney failure treatment, genes can influence both the reason the kidneys failed and how the body handles certain drugs. Genetic testing can sometimes identify how your body handles certain medicines, which may help doctors choose doses more carefully, especially after a kidney transplant. For example, some people process tacrolimus, a common anti-rejection medicine, faster or slower than expected, so blood levels and doses may need close adjustment. Inherited kidney conditions can also guide bigger treatment decisions, such as whether relatives should be offered testing and whether the same disease could affect a transplanted kidney. Even so, treatment is never based on genes alone, because kidney function, age, dialysis, and other medicines also play a major part in how drugs work.
Interactions with other conditions
Kidney failure often affects more than just the kidneys, and many living with kidney failure also deal with heart disease, high blood pressure, or diabetes. When the kidneys cannot clear extra fluid and waste well, strain can build on the heart and blood vessels, which raises the risk of swelling, shortness of breath, abnormal heart rhythms, and heart attacks or strokes. Diabetes is one of the most common causes of kidney failure, and once both are present, managing blood sugar, fluid balance, and medicines can become more complicated. Doctors call it a comorbidity when two conditions occur together. People with kidney failure may also have anemia, weaker bones, nerve problems, or a higher risk of infection, and early symptoms of kidney failure can sometimes overlap with symptoms from these other conditions, making them harder to spot. Some may find that treatment for one illness affects another, such as pain relievers worsening kidney function or kidney failure changing how the body handles medicines for heart disease, so coordinated care is especially important.
How genes can cause diseases
Humans have more than 20,000 genes, each carrying out one or a few specific functions in the body. One gene instructs the body to digest lactose from milk, another tells the body how to build strong bones and another prevents the body's cells from beginning to multiply uncontrollably and developing into cancer. As all of these genes combined are the building instructions for our body, a defect in one of these genes can have severe health consequences.
Through decades of genetic research, we know the genetic code of any healthy/functional human gene. We have also identified that in certain positions on a gene, some individuals may have a different genetic letter from the one you have. We call these hotspots "Genetic Variations" or "Variants" in short. In many cases, studies have been able to show that having the genetic letter "G" in the position makes you healthy, but having the letter "A" in the same position disrupts the gene function and causes a disease. Genopedia allows you to view these variants in genes and summarizes all that we know from scientific research, which genetic letters (Genotype) have good or bad consequences on your health or on your traits.
What other conditions can cause similar symptoms to Kidney failure?
Several other health problems can look like kidney failure, especially dehydration, a serious blockage in the urinary tract such as a kidney stone or enlarged prostate, and severe infections that affect the kidneys or the whole body. Swelling, tiredness, shortness of breath, nausea, or making less urine can also happen with heart failure, liver disease, or some medicines that strain the kidneys. Because these symptoms overlap so much, blood tests, urine tests, and sometimes imaging are usually needed to tell the cause.
History
Throughout history, people have described the exhaustion, swelling, and changes in urination that can happen when the kidneys stop working well. Long before modern testing, doctors relied on what they could see and hear: puffy legs, very little urine, severe itching, confusion, or a person becoming steadily weaker over days to months. For many living with kidney failure, these same day-to-day problems still shape daily life now, even though today they can be recognized much earlier.
As medical science evolved, kidney failure became easier to identify as doctors linked these symptoms to the kidneys’ job of filtering waste and balancing fluid in the body. In the 1800s and early 1900s, urine testing, blood pressure measurement, and later blood tests helped separate sudden kidney failure from slower, long-term kidney disease that can eventually lead to kidney failure. This mattered in real life: someone who once would have been described simply as “dropsical” or “uremic” could now be assessed more clearly, and doctors began to understand why one person got better after an illness while another needed ongoing care.
The biggest turning point came in the 20th century with dialysis and kidney transplantation. Dialysis made it possible to do part of the kidneys’ work when they could no longer keep up, first in emergency settings and later as regular treatment for people with long-term kidney failure. Transplantation then offered another path, helping many people return to work, school, family routines, and a more flexible life.
In recent decades, awareness has grown around the early symptoms of kidney failure and the importance of finding chronic kidney disease before it reaches an advanced stage. Researchers also learned more about the many causes, including diabetes, high blood pressure, immune conditions, infections, blocked urine flow, medication injury, and some inherited disorders. Understandings have changed, but the overall story is reassuring in one important way: kidney failure is no longer seen as a condition that must go unnoticed until the very end, because earlier diagnosis, dialysis, transplantation, and better supportive care have changed what treatment and daily life can look like for many people.