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Hemodialysis is a process of purifying the blood of a person whose kidneys are not working normally. It is a treatment to filter wastes and water from your blood, as your kidneys did when they were healthy.


How does hemodialysis help you?


  • helps control blood pressure
  • balance important minerals, such as potassium, sodium, and calcium, in your blood.

It can help you feel better and live longer, but it’s not a cure for kidney failure.


Hemodialysis unit

How the machine works

Did you know?

During hemodialysis, your blood is pumped through soft tubes to a dialysis machine where it goes through a special filter called a dialyzer (also called an artificial kidney). With hemodialysis, the filtering membrane is called a dialyzer and is inside a dialysis machine. Your blood is circulated through the dialysis machine and cleaned before being returned to your body.

Explore more

Hemodialysis is required when the body’s kidneys can no longer do their job of cleaning the body’s blood, often because of damage to the kidneys ca

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