There are two main types:
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Hemodialysis: Imagine a machine acting as a kidney filters your blood to remove waste products which is usually done at a clinic 3 times a week. Some people can do it at home.
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Peritoneal Dialysis: Instead of a machine, your own body does the filtering. A special fluid is put into your belly, and it absorbs waste products. You can do this at home, either manually or with a machine.