Dialysis

A diagnosis that involves dialysis can feel overwhelming, but understanding your options is an important first step. Dialysis is a treatment that helps when your kidneys can no longer keep up with the work of cleaning your blood. There are several types of dialysis, and many people continue to live active, meaningful lives while on treatment. This page explains what dialysis is, the main types available, how to prepare, and how to take care of yourself along the way. Your nephrologist is your partner in making the choice that fits your health, your goals, and your daily life.

What dialysis is and when it's needed

Healthy kidneys filter waste and extra fluid out of your blood, balance important minerals, and help control blood pressure. When kidney disease becomes advanced, the kidneys may no longer be able to do enough of this work on their own. Dialysis is a treatment that takes over some of these jobs, removing waste products and excess fluid to help you feel better and stay healthier.

Dialysis is usually considered when kidney function falls very low, often in what is called end-stage kidney disease. The decision is not based on a single number alone. Your nephrologist will look at your lab results, your symptoms, and how you are feeling day to day. Some people start dialysis because of symptoms such as nausea, swelling, trouble breathing, or fatigue that come from waste and fluid building up in the body.

Starting dialysis is a personal decision, and there is often time to think it through. Talking with your care team early gives you the chance to learn about all of your choices before you need to begin.

Types of dialysis

There is no single "best" type of dialysis for everyone. The right choice depends on your health, your home situation, your support system, and your personal preferences.

In-center hemodialysis. This is done at a dialysis center, usually three times a week, with each session lasting several hours. A machine filters your blood and returns it to your body. Trained staff are present to manage your treatment, which some people find reassuring. This option also offers a regular routine and a chance to connect with staff and other patients.

Home hemodialysis. Some people can do hemodialysis at home after completing training, often with a care partner. Home hemodialysis may be done more frequently or on a more flexible schedule than in-center treatment. Many people value the comfort of being at home and the ability to fit treatment around work and family.

Peritoneal dialysis. This type uses the lining of your own abdomen, called the peritoneum, as a natural filter. A cleansing fluid flows into your belly through a soft tube, draws out waste and extra fluid, and is then drained away. Peritoneal dialysis is typically done at home, either by hand during the day or with a machine that runs while you sleep. It can offer a good deal of independence and flexibility.

Nocturnal hemodialysis. Some patients may have the option of hemodialysis performed overnight while they sleep, either at home or in certain centers. Longer, slower treatment can be gentler on the body for some people. Ask your nephrologist whether this is appropriate for you.

Preparing for dialysis

Planning ahead makes the start of dialysis smoother and gives you more choices. Preparation generally focuses on three things: access, education, and timing.

Access. Dialysis access is the pathway used to filter your blood. For hemodialysis, this is often a connection created in the arm, called a fistula or graft, or sometimes a catheter. For peritoneal dialysis, a soft tube is placed in the abdomen. Access is usually created weeks to months before you start treatment so it has time to heal and work well. Planning early helps you avoid relying on a temporary option.

Education. Learning about your choices is one of the most powerful things you can do. Many practices offer classes or one-on-one teaching about the different types of dialysis, what daily life looks like with each, and how to care for your access. The more you understand, the more confident you can feel in your decision.

Planning ahead. Timing matters. Working with your nephrologist before kidney function reaches a crisis point lets you choose your treatment, prepare your access, and arrange the support you may need. It also leaves room to consider whether a transplant might be an option for you.

Living well on dialysis

Dialysis becomes part of life, but it does not have to take over your life. Many people continue to work, spend time with family, travel, and enjoy hobbies while on treatment. A few habits can help you feel your best.

• Keep up with your treatment schedule, since skipping or shortening sessions can affect how you feel.
• Follow the eating and fluid guidance your care team gives you, which may include attention to salt, potassium, phosphorus, and fluids.
• Take your medicines as prescribed and bring questions to your appointments.
• Stay as active as you safely can, since movement supports energy and overall health.
• Care for your access and watch for any changes, reporting concerns promptly.

Emotional health matters too. It is normal to have ups and downs. Support from loved ones, other patients, social workers, or counseling can help you cope. Conditions that often go along with kidney disease, such as anemia and changes in bone health, are also managed as part of your overall care, which can help you feel stronger and more comfortable.

Transplant as an option

For many people, a kidney transplant is another way to treat advanced kidney disease. A transplant replaces the work of your kidneys with a donated kidney and, for those who qualify, can offer more freedom from the dialysis schedule. Some people are evaluated for transplant before they ever start dialysis, while others consider it after they have begun treatment.

Not everyone is a candidate, and the evaluation looks closely at your overall health. If you do receive a transplant, ongoing follow-up is important to keep the new kidney healthy. You can learn more about long-term support through post-kidney transplant care. Ask your nephrologist whether transplant might be a path worth exploring for you.

Talking with your nephrologist

The best dialysis plan is one made together with your care team. Bring your questions, your concerns, and your goals to your appointments. You might ask which types of dialysis you are a candidate for, how each option would fit your daily life, when you might need to start, and whether transplant could be considered. It also helps to talk about how dialysis fits with your ongoing care for impaired kidney function.

There are no wrong questions. Understanding your choices helps you take an active role in your care and make decisions that feel right for you.

Facing dialysis is a big step, but you do not have to face it alone. With good information, careful planning, and a supportive care team, many people find that they can adjust and continue to live full, active lives. Whatever path you choose, your nephrologist is there to guide and support you.