Nobody wants to hear that their kidneys are slowing down. But if you are living with chronic kidney disease, knowing the signs you may need to start dialysis soon can help you have clearer, calmer conversations with your care team. Dialysis is not a decision that gets made overnight, and it is not based on any single symptom or lab number. It rests on whether your symptoms fit advanced kidney disease and whether dialysis has a realistic chance of easing them. Your nephrologist looks at how you feel, what your lab work shows, and how your daily life is being affected.
This guide walks through the symptoms people often notice, the tests doctors rely on, the types of dialysis, and what preparing for treatment can look like. If something here sounds familiar, think of it as a nudge to check in with a kidney specialist rather than a reason to panic.
Healthy kidneys filter waste, extra fluid, and excess minerals from your blood every day. When chronic kidney disease progresses, that filtering ability can decline over time. In the most advanced stage, often called end-stage kidney disease or kidney failure, the kidneys may no longer keep up with what the body needs. Dialysis steps in to handle part of that filtering work.
Many people with kidney disease never need dialysis, and others may go years between diagnosis and treatment. Progression varies depending on the underlying cause, such as diabetes, high blood pressure, or inherited conditions, and on how well those conditions are managed. That is why regular monitoring with a nephrologist matters so much.
Symptoms of advanced kidney disease are easy to brush off, because they overlap with everyday stress and aging. Here are some that people often describe:
Having one of these symptoms does not mean dialysis is around the corner, since many of them have other causes. But a cluster of symptoms, especially alongside a known diagnosis of chronic kidney disease, is worth bringing up promptly.
Symptoms tell part of the story, and lab work fills in the rest. A few results come up again and again in these conversations:
Doctors rarely decide on dialysis from one number. They look at trends over weeks and months, and they weigh those trends against how you are actually feeling.
The decision is shared between you and your care team, and it is not tied to one lab value or a fixed number. It rests on whether your symptoms fit advanced kidney disease and whether dialysis has a realistic chance of easing them. Family, friends, or a faith leader can be part of the conversation, but the final choice is made between you and your nephrologist. Some people begin when their eGFR is in the low teens along with symptoms, while others may wait longer if they feel well and their labs remain stable.
Your nephrologist may recommend starting for reasons such as these:
Beyond lab results, your nephrologist will also consider two practical points: how easily you can travel to a dialysis center and how much support you have at home. If getting to a center is difficult, home dialysis may be worth exploring.
Good care also includes time to prepare. Many practices offer education visits so you can learn what to expect, ask questions, and weigh your options before anything becomes urgent. Walking into dialysis with a plan tends to feel very different from starting it in an emergency.
There are two main types of dialysis, and the right fit depends on your health, home situation, and preferences.
Kidney transplant is another path, and it is worth raising early. People with an eGFR below 20 may be evaluated and placed on the waiting list if a transplant center finds them eligible. If kidney function is declining slowly and symptoms are controlled with diet and medication, a transplant may even happen before dialysis is needed.
Dialysis is always an option, never an obligation. Some people choose to focus on living as well as possible without it, and some try dialysis for a period to see how it feels. If it is not the right fit, you can stop, and your nephrologist can continue caring for you. For some older adults or people with significant other health conditions, the benefits of dialysis may be limited, which is worth discussing openly with your care team.
Medicare generally covers about 80 percent of dialysis costs for people who qualify through age, disability, or kidney failure. If you are not yet enrolled, there can be a waiting period of around three months before coverage begins, though home dialysis coverage may start right away. Pre-dialysis education is also covered. Because eligibility rules vary, ask your care team or a renal social worker to walk you through your situation.
Preparing does not mean giving up. Many of the steps below may also support the kidney function you still have:
If you have been diagnosed with chronic kidney disease, a declining eGFR, protein in your urine, or a family history of kidney problems, seeing a kidney specialist sooner rather than later is a smart move. The same goes for new swelling, changes in urination, or ongoing fatigue that you cannot explain. Early conversations give you more time, more options, and more say in what comes next.
If you have noticed any of the signs you may need to start dialysis soon, you do not have to sort through it alone. The care team at Dallas Renal Group can review your symptoms, look at your lab trends, and explain your options in plain language. Whether you are managing early chronic kidney disease or planning for dialysis, a nephrologist at Dallas Renal Group can help you understand what to expect and build a plan that fits your life. Reach out to Dallas Renal Group today to schedule a visit and take the next step with confidence.
Q: Can you have kidney failure without any symptoms?
A: Yes, it is possible. Early chronic kidney disease often causes few noticeable symptoms, which is why routine blood and urine tests matter for people with diabetes, high blood pressure, or a family history of kidney disease.
Q: How low does kidney function need to be before dialysis starts?
A: There is no single cutoff. Many nephrologists begin discussing dialysis as eGFR approaches or falls below 15, but timing depends on symptoms, lab trends, and overall health.
Q: Is dialysis always permanent?
A: Not always. After a sudden kidney injury, dialysis may be temporary while the kidneys recover. With end-stage kidney disease, it often continues long term unless a transplant becomes an option.
Q: Can diet changes delay the need for dialysis?
A: Eating habits may help support kidney health and, along with proper medical care, may help slow progression for some people. A renal dietitian can tailor guidance to your lab results.
Q: Can I keep working after I start dialysis?
A: Many people do. Home-based options and flexible treatment schedules can make this easier, though it depends on your health and the type of dialysis you choose.
Q: Does Medicare cover dialysis?
A: In most cases, yes. Medicare typically pays a large share of dialysis costs for eligible patients, and pre-dialysis education is covered as well. Coverage timing and out-of-pocket costs depend on your enrollment and plan, so a social worker or billing specialist at your nephrology practice can explain what applies to you.
Q: What is an optimal start, and when should a nephrologist refer for permanent vascular access?
A: An optimal start means beginning outpatient dialysis with a permanent, fully matured access, such as an AV fistula, AV graft, or peritoneal dialysis (PD) catheter, or receiving a preemptive kidney transplant, rather than starting urgently with a temporary central venous catheter (CVC). Nephrologists generally recommend evaluating and placing permanent access well before dialysis is needed to allow sufficient time for healing and maturation.
Q: Why is early access preparation important for avoiding central venous catheters (CVCs) and reducing infection risks?
A: Starting dialysis with a central venous catheter carries a substantially higher risk of serious bloodstream infections, bacteremia, and catheter-related complications compared to using a mature AV fistula, graft, or PD catheter. Early preparation allows the access site to heal and mature properly, minimizing the need for emergency catheter placements, lowering hospitalization rates, and improving long-term health outcomes.
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