What is Hemodialysis Hemodialysis is a method to purify blood of the toxins which are otherwise excreted by a normal kidney. In essence, it replaces the excretory functions of kidneys. To read more about Hemodialysis, click here. ShareTweet Category: Hemodialysis ← FAQs Is this FAQ useful? Useful Not Useful 0 of 0 people say this FAQ is useful.