Kidney failure means your kidneys can no longer filter waste and excess fluid well enough to keep you alive without intervention. At this stage, kidney function has dropped below 15% of normal, and you’re facing a set of concrete decisions about how to move forward. The main paths are dialysis, a kidney transplant, or conservative management focused on comfort and quality of life. Which option fits depends on whether the failure is sudden or long-developing, your overall health, and your personal priorities.
Sudden vs. Long-Term Kidney Failure
The first thing that matters is whether your kidney failure came on suddenly or developed over months to years, because the treatment approach differs significantly.
Acute kidney injury happens fast, sometimes over hours or days, and is often triggered by severe dehydration, an infection, a medication reaction, or a blockage in the urinary tract. The initial treatment focuses on hydration, stopping any drugs or toxins that may be harming the kidneys, and giving the organs time to recover. Hospital admission is common. You’ll likely have frequent blood draws and urine tests, and imaging like a kidney ultrasound to help your care team figure out what’s going on. If the injury is severe, a kidney biopsy may be needed. Many people with acute kidney injury recover significant function once the underlying cause is treated, though dialysis is sometimes necessary in the short term if the kidneys don’t bounce back quickly enough.
Chronic kidney disease (CKD) is the slow, progressive loss of kidney function that builds over years. By the time it reaches stage 5, your filtration rate has fallen below 15%, and this is what doctors call kidney failure or end-stage renal disease. Unlike acute injury, the damage here is generally permanent. The rest of this article focuses on what to do at this stage.
Dialysis: Your Two Main Options
Dialysis does the job your kidneys can no longer handle: filtering waste, removing extra fluid, and balancing your blood chemistry. There are two types, and they differ in ways that affect your daily life more than your medical outcomes.
In-Center Hemodialysis
With hemodialysis, you go to a dialysis center at least three times a week. Trained staff handle every aspect of the treatment, which typically lasts three to four hours per session. You don’t need to learn to do it yourself, but the tradeoff is a rigid schedule set by the center, regular travel, and limited privacy since you’re in a room with other patients. Some centers restrict eating and drinking during treatment. On the positive side, many people build friendships with others going through the same experience.
Peritoneal Dialysis
Peritoneal dialysis uses the lining of your abdomen as a natural filter. A catheter is placed in your belly, and you fill the space with a cleansing fluid that draws out waste before draining it. No machine is required for the basic version. You do it every day, but the total time commitment is often less than hemodialysis once you factor in travel and wait times at a center. It offers more flexibility: easier travel, more mobility, and often fewer diet and fluid restrictions. The downsides include the need for storage space at home for supplies, potential for infection around the catheter, possible weight gain from the sugar in the dialysis fluid, and challenges with blood sugar control if you have diabetes.
Fluid and Diet Changes on Dialysis
Your fluid allowance depends on how much kidney function you still have and which type of dialysis you’re on. Hemodialysis patients generally need to limit fluids to avoid complications like low blood pressure, cramping, and strain on the heart during treatments. A common target is keeping weight gain between sessions to no more than about 2.2 pounds (1 kilogram) per day. Peritoneal dialysis patients may be able to drink fluids more normally, though watching sodium and sugar intake helps control thirst and weight gain.
Beyond fluids, you’ll work with a dietitian to manage phosphorus, potassium, and sodium in your diet. When kidneys fail, phosphorus builds up in the blood and pulls calcium from your bones, leading to bone weakening over time. Your doctor may prescribe phosphate binders, which you take with meals to keep phosphorus from being absorbed. Calcium supplements, vitamin D, and other medications to control parathyroid hormone levels are also common parts of the regimen.
Kidney Transplant
A transplant is the closest thing to a cure for kidney failure. A healthy kidney from a living or deceased donor replaces the work your own kidneys can no longer do. Transplant recipients generally report better quality of life and fewer dietary restrictions than people on dialysis, though they trade one set of demands for another: lifelong anti-rejection medications and regular follow-up care.
Getting listed for a transplant involves a thorough evaluation. Your transplant team will test your kidney function and other organs, screen for conditions like heart or lung disease, current cancer, or severe obesity that might make surgery too risky. You’ll also meet with a psychologist or social worker. The team wants to know that you have the support system to attend appointments and take medications consistently, and that you have stable housing so they can reach you when an organ becomes available. A history of drug or alcohol use doesn’t automatically disqualify you, especially if you’ve shown progress in treatment.
Financial resources matter too. Even after surgery, you’ll need insurance or other coverage for anti-rejection drugs and ongoing medical visits for the life of the transplant. The average wait for a deceased donor kidney is three to five years at most centers, and it can be longer depending on where you live. A living donor, whether a family member, friend, or even an altruistic stranger, can shorten or eliminate that wait entirely. There is no standard age cutoff; each transplant program sets its own criteria.
Managing Complications
Kidney failure doesn’t just affect waste removal. It disrupts several other body systems, and managing these complications is a major part of ongoing care.
Anemia is extremely common because failing kidneys produce less of the hormone that signals your bone marrow to make red blood cells. The result is persistent fatigue, weakness, and sometimes shortness of breath. Treatment typically involves medications that stimulate red blood cell production, along with iron supplements if your stores are low.
Bone and mineral problems develop because the kidneys can no longer activate vitamin D or clear excess phosphorus. Over time, this weakens bones and can cause calcium deposits in blood vessels. The combination of phosphate binders taken with meals, vitamin D supplements, and medications to control parathyroid hormone levels helps keep this in check.
Fluid overload, high blood pressure, and heart strain are ongoing risks. Keeping up with dialysis sessions, following fluid guidelines, and taking blood pressure medications as prescribed are the main defenses.
Conservative Management Without Dialysis
Not everyone chooses dialysis or transplant. Conservative management is a valid path, particularly for older adults or people with serious additional health conditions where the burden of dialysis may outweigh the benefits. This approach focuses on quality of life and symptom control rather than replacing kidney function.
A care team that may include a kidney specialist, dietitian, social worker, and pharmacist works to preserve whatever kidney function remains for as long as possible. Treatment addresses symptoms like nausea, poor appetite, and emotional distress, along with complications like anemia. The goals are to maintain the best possible quality of life and to avoid treatments or hospital stays that would make things worse. Conservative management also includes planning for end-of-life care so that your wishes are understood and respected.
Choosing this path doesn’t mean choosing no care. It means choosing care designed around comfort and what matters most to you, with potentially fewer medical appointments, blood draws, and medications than the dialysis route requires.
How to Start Making Decisions
If you’ve just learned your kidneys are failing, the volume of information can feel paralyzing. A few practical steps help.
First, ask your nephrologist to walk you through your specific numbers and what they mean for your timeline. Some people function relatively well at low filtration rates for months before needing to start treatment, while others need to begin quickly. Second, if transplant is a possibility, get your evaluation started early. The wait time for a deceased donor kidney means that starting the process months or even years before you absolutely need it can make a real difference. Third, talk to people who are living with each option. Dialysis centers, transplant programs, and kidney disease organizations often connect patients with mentors who’ve been through the same decisions. Hearing what daily life actually looks like on hemodialysis, peritoneal dialysis, or after transplant is more useful than any brochure.