Colon is that part of the body that deals with the fecal matter at the end of the digestive system. Hence, it is also associated with the most toxic and dangerous materials in the human body. Folk lore has us believe that the colon and rectum harbor many dangerous toxins and microbes that can wreck havoc if they damage the internal walls. It is therefore necessary in such traditions to clean the colon regularly using outside stimuli. The method is broadly called as colon cleansing.
This broad classification is based on the ingredients that are used to bring out the toxins from the body. One example is the use of tree husks mixed in water so that the colon is flushed dry of any matter within it. Another method makes use of just water injected directly into the colon so as to force feces away from the walls and naturally make it fall through the rectum and out of the anus.