In Black Africa, adults still remember the singular little "showers" that their mothers made them take as children. Carried out with the help of an enema bulb, these showers were known for their medical properties. Some Natives of India will nod, as the practice is known in their land. A well-informed Native American will not say otherwise. Going back in time, we realize that intestinal cleansing, or colon hydrotherapy, is known in Egypt, Greece and medieval France. Closer in history, doctors have experienced it, with, they say, very convincing results, conclusions that have been discussed by other specialists like them.In view of all these testimonies, colon hydrotherapy does not seem insignificant. Is this method of care, more or less neglected, more or less discussed, of such interest?The purpose of this small book is to provide a more detailed understanding of the colon hydrotherapy method of health.