What is dialysis and what is …

The kidneys are a pair of organs, each about the size of a fist, located on either side of your spine. They’re responsible for purifying your blood by removing waste and excess fluid from your body. When the kidneys don’t work properly, dialysis is used to perform the function of the kidneys.

It’s a treatment that takes over your kidney functions if those organs stop doing their job. There are two types of dialysis:

Hemodialysis: Your blood is put through a filter outside your body, cleaned, and then returned to you. This is done either at a dialysis facility or at home.

Peritoneal dialysis: Your blood is cleaned inside your body. A special fluid is put into your abdomen to absorb waste from the blood that passes through small vessels in your abdominal cavity. The fluid is then drained away. This type of dialysis is typically done at home.

Excretion: All living things produce waste that they have to get rid of.

If they don't, it builds up in their bodies and can become harmful.

The process of removing waste products is called excretion.