Dialysis is a medical process in which it removes waste from the bloodstream. This is usually done for people who have failing organs. What happens when you stop dialysis is the toxins will build up and you will die.
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Dialysis, in medicine, is a method of manually removing waste and water from the blood. It is done when someone has kidney failure. If someone in kidney failure were to stop treatment and are not able to receive a transplant, toxins will build up in the body and lead to death in a matter of weeks.