Endoscopy is the insertion of a long, thin tube directly into the body to observe an internal organ — such as the gastrointestinal tract — in detail. Doctors can also use it in imaging, surgery, and ...

Hydrotherapy of the colon, also known as colonic cleansing or irrigation, involves using water to flush waste out of the large intestine. The colon, or large intestine, absorbs water and salts from ...