Colon hydrotherapy or colonic irrigation is an alternative therapy used to cleanse, maintain and restore colon health. Colon cleansing may take the form of colon hydrotherapy (also called a colonic or colonic irrigation) or oral cleansing regimens such as dietary supplements.
Colon hydrotherapy uses enemas to inject low-pressure water — created mechanically or by gravity —, sometimes mixed with herbs or with other liquids, into the colon using special equipment. Oral cleaning uses dietary fiber, herbs, dietary supplements, or laxatives. Practitioners believe that accumulations of putrefied feces line the walls of the large intestine and that these accumulations harbor parasites or pathogenic gut flora, causing nonspecific symptoms and general ill-health. This "auto-intoxication" hypothesis is based on medical beliefs of the Ancient Egyptians and Greeks. However, no scientific evidence supports the alleged benefits of colon cleansing.