A colonoscopy is a screening procedure used to examine the large intestine for abnormalities such as polyps or cancer. A thorough examination relies heavily on proper bowel preparation, which involves cleansing the colon of all solid stool. Understanding what your bowel movements should look like during this preparation period can help ensure the procedure is successful. This article will clarify the appearance of ideal bowel movements and what other colors might signify during the prep process.
The Goal: Clear and Yellow Liquid
For a successful colonoscopy, the goal is to achieve bowel movements that are clear and yellowish, resembling urine or light apple juice, with no solid particles. This indicates the colon is sufficiently clean for the physician to clearly visualize its entire lining. A clear colon allows for the detection and removal of small polyps or other abnormalities that might otherwise be hidden by residual stool.
Small flecks or a slight yellow tint are acceptable, often due to digestive secretions like bile. The absence of solid material is important because any remaining stool can obscure the view, potentially leading to missed findings or the need to reschedule the procedure.
What Other Colors Mean During Prep
As you progress through your bowel preparation, your stool will change in color and consistency. Initially, you might see brown or solid stool, indicating the prep has just begun or is not yet effective. If you continue to see dark, thick, or brown stool with particles even after consuming a significant portion of your prep solution, your colon is not adequately cleansed.
Reddish or purplish hues can occur if you have consumed clear liquids with these colorings, such as red Gatorade or grape juice. While these colors are generally not a concern if the liquid is clear, it is often advised to avoid them to prevent confusion with blood during the examination. Persistent dark or solid stool, however, suggests incomplete preparation.
Achieving Proper Bowel Preparation
To ensure your colon is adequately prepared, follow all instructions provided by your healthcare provider precisely. Continue drinking the prescribed bowel preparation solution until your bowel movements are clear and yellow liquid, free of solid material. Do not stop the prep prematurely, even if you feel you are already having clear output, unless specifically advised by your doctor.
If, after completing the instructed prep, your bowel movements remain dark, thick, or contain solid particles, contact your doctor or the clinic. They may advise an additional dose of laxative or other measures to achieve the necessary cleanliness. A well-cleaned colon is important for an accurate and effective colonoscopy, reducing the chance of missed findings and the need for a repeat procedure.