What is the purpose of an enema?

The primary purpose of an enema is to introduce fluid into the rectum or lower colon. This procedure helps in a variety of medical situations, including the preparation for certain diagnostic tests such as a colonoscopy, when patients need to clear their intestines. The fluid can help soften stool, promote bowel movements, and facilitate the removal of waste. By instilling liquid, healthcare providers can create an environment in the intestines that encourages the passage of stool, which is particularly helpful in treating constipation or bowel obstructions. Overall, the introduction of fluid is a critical aspect of the enema's function, as it serves to hydrate the rectal and intestinal walls, enhancing the effectiveness of subsequent evacuation.