Kidney failure is treated with dialysis, a kidney transplant, or conservative management focused on symptoms and quality of life. The right approach depends on whether the kidney failure is sudden or chronic, how much kidney function remains, and your overall health. Most people with permanent kidney failure will need dialysis or a transplant to survive, since the kidneys can no longer filter waste and excess fluid from the blood on their own.
Acute vs. Chronic Kidney Failure
Treatment looks very different depending on whether kidney failure came on suddenly or developed over years. Acute kidney injury, caused by things like severe dehydration, infections, or medication reactions, is often reversible. The goal is to treat the underlying cause, support the body while the kidneys recover, and prevent further damage. Some people with acute kidney injury need temporary dialysis, but many regain enough function to stop.
Chronic kidney disease is a different story. By the time it reaches kidney failure (stage 5), the damage is permanent. Early intervention during the initial stages of chronic kidney disease can sometimes prevent progression to full failure, but once significant scarring has developed, treatment shifts from reversing the problem to managing it. That management typically involves dialysis, pursuing a transplant, or choosing conservative care that focuses on comfort and quality of life.
Hemodialysis
Hemodialysis uses a machine to filter your blood outside your body. Blood flows through tubing into a filter called a dialyzer, which removes waste products and excess fluid, then returns the cleaned blood to your body. Most people who choose this option go to a dialysis center three times per week, with each session lasting several hours. Trained staff handle the treatment, though some patients learn to insert their own needles over time. You’ll be in a room with other patients receiving treatment simultaneously, so privacy is limited.
Home hemodialysis is an alternative that allows you to dialyze five to seven times per week on a shorter schedule. You and a trained partner learn to run the treatments yourselves. This requires dedicated space in your home for the machine, a water system, and supplies, and your home may need electrical or plumbing modifications. The tradeoff is greater flexibility and more frequent, gentler filtering that can feel better physically.
Hemodialysis costs the Medicare system an average of $90,000 per patient per year in the United States. It’s a significant financial and time commitment that shapes daily life in ways many people don’t anticipate until they start.
Peritoneal Dialysis
Peritoneal dialysis works differently. Instead of filtering blood through a machine, it uses the lining of your abdomen (called the peritoneum) as a natural filter. A surgeon places a small catheter in your belly, and you fill the abdominal cavity with a special fluid that draws waste and extra water out of your blood vessels. After several hours, you drain the fluid and replace it with fresh solution.
This type of dialysis is done every day with no days off, but it doesn’t require a machine and gives you more independence. Many people do exchanges at home or even at work. The main risks include infection around the catheter site, and some people feel self-conscious about the catheter’s appearance. Peritoneal dialysis tends to work well for people who want to manage their own care and avoid the rigid schedule of in-center hemodialysis.
Kidney Transplant
A kidney transplant is the closest thing to a cure for chronic kidney failure. A healthy kidney from a living or deceased donor is surgically placed in your body, and if it functions well, you no longer need dialysis. One-year survival rates for transplanted kidneys have improved significantly over the past two decades, reaching about 98% for living-donor kidneys and 94% for deceased-donor kidneys as of 2023, according to the U.S. Renal Data System.
Not everyone qualifies. To be considered, your kidney function generally needs to be at or below roughly 20% of normal, or you need to already be on dialysis. If your function is slightly higher but declining rapidly (losing at least 10 percentage points per year), you may still be eligible, especially if a living donor is available.
Several conditions can disqualify you from transplant eligibility. These include a life expectancy under five years even with a successful transplant, a BMI above 45, active substance use disorders, severe heart or lung disease, cancer likely to worsen after transplant, or an inability to safely take the lifelong anti-rejection medications that transplant recipients need. You also need a support system to help during recovery and follow-up care. The evaluation process involves screening for infections, cancer, and cardiovascular disease, and can take several days.
The financial picture favors transplants over long-term dialysis. Total Medicare spending on transplant patient care is about $3.4 billion annually compared to $28 billion for hemodialysis, reflecting the lower ongoing cost once a transplant is successful. The first year is expensive due to surgery and intensive follow-up, but costs drop substantially after that.
Medications That Support Treatment
Whether you’re on dialysis or managing advanced kidney disease before it reaches the dialysis stage, medications play a supporting role in keeping your body balanced. Failed kidneys can’t regulate minerals, hormones, or red blood cell production the way healthy kidneys do, so drugs step in to fill those gaps.
Managing Phosphorus Buildup
Healthy kidneys filter excess phosphorus out of your blood. When they can’t, phosphorus builds up and pulls calcium from your bones, leading to weakening and pain over time. Phosphate binders are pills you take with every meal and snack. They attach to phosphorus in your stomach before it enters your bloodstream, and the bound phosphorus leaves your body in your stool. Some of these are as simple as over-the-counter antacids containing calcium carbonate. Taking them consistently with food is essential for them to work.
Treating Anemia
Your kidneys produce a hormone that signals your bone marrow to make red blood cells. When the kidneys fail, that signal weakens, and anemia develops. You feel tired, short of breath, and cold. Injectable medications can replace that missing hormone and stimulate red blood cell production. Before starting these, doctors first check and correct your iron levels, since the drugs won’t work well without adequate iron stores. The goal is to bring your hemoglobin up to a moderate target, not all the way to normal, because pushing too high increases the risk of blood clots and other complications.
Conservative Management
Dialysis and transplant aren’t the right choice for everyone. Older adults, people with multiple serious health conditions, or those who decide the burden of dialysis outweighs the benefits may choose conservative management instead. This approach focuses on slowing kidney decline as much as possible, managing symptoms like nausea, itching, and fatigue, and maintaining quality of life without dialysis.
Conservative care includes dietary adjustments to reduce waste buildup, medications to control blood pressure, treat anemia, and manage fluid retention, along with palliative support for comfort. It’s a legitimate medical path, not giving up. For some frail or elderly patients, studies suggest that dialysis may add very little survival time while significantly reducing quality of life, making conservative care a reasonable and sometimes preferable option.
What Daily Life Looks Like
The treatment you choose reshapes your routine. In-center hemodialysis means three fixed appointments per week, each lasting about four hours plus travel time. Many people feel drained afterward. Peritoneal dialysis offers more scheduling freedom but requires daily attention and strict hygiene around the catheter to prevent infection. A transplant, if successful, offers the most normal lifestyle, but you’ll take anti-rejection medications every day for the rest of your life and need regular blood work to monitor kidney function.
Diet changes apply across the board. You’ll likely need to limit sodium, potassium, and phosphorus intake. Fluid restrictions are common for people on dialysis. A renal dietitian can help you build a plan that works with your food preferences while keeping your blood chemistry in a safe range. These adjustments feel overwhelming at first but become more routine with time.