End stage renal disease (ESRD) is the final stage of chronic kidney disease, where the kidneys have lost nearly all their ability to filter waste and excess fluid from the blood. It’s defined by a glomerular filtration rate (GFR) below 15 mL per minute, meaning the kidneys are functioning at roughly 10 to 15 percent of their normal capacity. At this point, survival requires either dialysis or a kidney transplant.
How ESRD Develops
Chronic kidney disease progresses through five stages based on how well the kidneys filter blood. Stage 1 involves mild damage with normal filtration, while stage 5, the end stage, means the kidneys can no longer sustain life on their own. The decline from early kidney disease to ESRD can take years or even decades, depending on the underlying cause and how well it’s managed along the way.
Diabetes and high blood pressure are the two biggest drivers. About 1 in 3 people with diabetes and 1 in 5 people with high blood pressure develop some form of kidney disease. Heart disease and a family history of kidney failure also raise risk. Hispanic people are more likely than White or Black people to develop ESRD caused by diabetes specifically. Other causes include autoimmune conditions like lupus, inherited diseases like polycystic kidney disease, and repeated kidney infections.
What ESRD Feels Like
In earlier stages of kidney disease, most people have no symptoms at all. That changes as kidney function drops below about 10 to 15 percent. At that point, waste products build up in the blood faster than the body can compensate, a condition called uremia. The symptoms are widespread because nearly every organ system depends on the kidneys to keep blood chemistry in balance.
The most common early signs are persistent nausea, vomiting, loss of appetite, and fatigue that doesn’t improve with rest. Many people experience muscle cramps, intense itching, and unexplained weight loss. Mental fog and difficulty concentrating are typical as toxins accumulate. Some people notice visual changes or increased thirst. In severe cases, urea crystals can appear on the skin as a white, frost-like residue, and skin may take on a yellowish or darkened tone.
Underneath these visible symptoms, the body is dealing with a cascade of metabolic problems: anemia from reduced production of a hormone the kidneys normally make, dangerously high potassium levels, acid buildup in the blood, and worsening high blood pressure. These complications often develop gradually, which is why regular blood work matters long before symptoms appear.
Bone and Heart Complications
Failing kidneys can’t properly regulate calcium and phosphorus, two minerals critical for bone strength. The body responds by overproducing parathyroid hormone (PTH) in an attempt to correct the imbalance. Over time, excess PTH weakens bones and increases fracture risk. It also drives calcium deposits into blood vessel walls, which stiffens arteries and raises the likelihood of heart disease and poor circulation.
Cardiovascular disease is the leading cause of death in people with ESRD, not kidney failure itself. The combination of high blood pressure, fluid overload, arterial calcification, and anemia creates enormous strain on the heart. This is why managing these secondary complications is just as important as replacing kidney function through dialysis or transplant.
Dialysis: Replacing Kidney Function
Dialysis doesn’t cure ESRD. It takes over the kidneys’ job of filtering waste and removing excess fluid, and it needs to continue indefinitely unless a transplant becomes available. There are two main types, and the choice between them depends on lifestyle, health status, and personal preference.
In-Center Hemodialysis
This is the most common form. Blood is drawn from the body through a vascular access point, filtered through a machine, and returned. Sessions happen at a dialysis center three times per week, typically lasting about four hours each. Trained staff handle the treatment, though some patients learn to insert their own needles. The main trade-off is the rigid schedule and travel time. Privacy is limited since treatment rooms are shared with other patients.
Home Hemodialysis
The same filtering process happens at home using a smaller machine. Treatments are more frequent, five to seven times per week, but each session is shorter. A trained partner must be present during treatment. You’ll need dedicated space at home for the machine, a water system, and supplies. The advantage is flexibility and the ability to dialyze more frequently, which can reduce the buildup of waste between sessions.
Peritoneal Dialysis
Instead of a machine filtering blood externally, this approach uses the lining of the abdominal cavity as a natural filter. A cleansing fluid is introduced through a catheter in the abdomen, absorbs waste products, and is then drained. It’s done daily with no days off, but no machine is required for the manual version. You’ll need storage space for supplies and fluid bags. Many people prefer it because it allows more independence from a clinic schedule.
Kidney Transplant
A successful kidney transplant offers significantly better outcomes than long-term dialysis. For a woman aged 55 to 59, transplantation adds an estimated 8.9 years of life compared to staying on dialysis. For a similarly aged man, the benefit is about 7.3 additional years. Transplant recipients still face higher mortality than the general population, but the survival advantage over dialysis is substantial across all age groups.
The challenge is access. The national median wait time for a kidney transplant is roughly 58 months, or nearly five years. At transplant centers with longer-than-average wait times, the median stretches to 69 months. Kidneys can come from deceased or living donors, and a living donor transplant typically has better outcomes and shorter wait times since it bypasses the national waitlist. Most people remain on dialysis while waiting.
Dietary Changes With ESRD
When the kidneys can’t filter properly, certain nutrients that are normally harmless start accumulating to dangerous levels. Dietary adjustments become essential, not optional.
Sodium needs to stay well below 2,300 milligrams per day, and many people with ESRD need to go lower than that. Excess sodium causes fluid retention, raises blood pressure, and makes dialysis less effective. Potassium, found in bananas, potatoes, and many fruits, must be carefully managed because high levels can cause dangerous heart rhythm problems. Phosphorus, abundant in dairy products, processed foods, and dark colas, needs to be limited to protect bones and blood vessels. Protein intake also changes: too much creates more waste for the kidneys (or dialysis) to handle, but too little leads to muscle wasting. A renal dietitian can help tailor specific limits based on your lab results and which type of dialysis you’re on.
The Financial Reality
ESRD treatment is expensive. In the United States, total Medicare spending on ESRD reached an all-time high of $55.3 billion in 2023. The per-person annual cost ranges from about $69,000 to $94,000 depending on insurance type, and costs are even higher for people who qualify for both Medicare and Medicaid, exceeding $113,000 per year in some cases.
Medicare covers most people with ESRD regardless of age, a unique provision in the U.S. healthcare system. Still, out-of-pocket costs for medications, transportation to dialysis, and supplemental care add up. The financial burden extends beyond medical bills: many people with ESRD reduce their work hours or stop working entirely due to the demands of treatment schedules and fatigue.
Living With ESRD
Daily life with ESRD revolves around treatment. In-center hemodialysis alone takes roughly 12 hours per week plus travel time, and recovery after each session can mean several more hours of fatigue. Peritoneal dialysis offers more flexibility but requires daily attention and meticulous hygiene to prevent infection at the catheter site.
Despite these demands, many people with ESRD maintain active lives, work part-time, travel with planning, and pursue hobbies. The key factors that improve quality of life are staying on top of dietary restrictions, keeping dialysis sessions consistent, managing anemia and bone health, and maintaining physical activity to the extent possible. For those who receive a transplant, the daily treatment burden drops dramatically, though lifelong medications to prevent organ rejection become the new constant.