Colonoscopy

What is a colonoscopy?

One of the best ways to prevent colon cancer is through a procedure known as a colonoscopy. This is where a doctor uses a long tube called an endoscope that is inserted through the rectum to examine the lining of the colon. The procedure enables the doctor to detect the presence of polyps or adenomas. The presence of adenomas greatly increases the risk of colon cancer, and if they are found during the procedure, the doctor will snip them off. This dramatically reduces the risk of colon cancer. If colon cancer is found, then the earlier the better, which is why colonoscopies are so important. And research has proven that colonoscopies are much better at detecting adenomas than barium enemas which used to be the preferred method of detection.

In order to prepare for a colonscopy, 1-2 days in advance of the procedure, you need to consume only clear liquids, avoid eating anything with seeds and take a laxative. There is now also something called a virtual colonoscopy which is not invasive, and uses a CT scanner and computer software. To the relief of many, it does not involve the use of an endoscope.