Through a colonoscopy, polyps or precancerous growths can be removed.
Now, a recent study confirms that a colonoscopy does help reduce the risk of dying from colon cancer. Through a colonoscopy, polyps or precancerous growths can be found and removed -- thus lessening the chance that these growths could develop into colon cancer.
During a colonoscopy, the doctor examines your colon by using an instrument with a camera. There, the doctor can see any growths, and make sure everything looks normal. However, in order for a doctor to examine your colon adequately, your colon needs to be squeaky clean. That means there is some preparation to do on your part.
Some people end up skipping the test even though they know they should have it done or their doctor told them to do it. While some may skip the test because it interferes with their work and personal schedule, others avoid it like the plague because of the pre-preparation work.
The preparation for a colonoscopy is not fun, but it's not horrible either. The worse part is the volume of gritty liquid you need to drink. It can make you feel awfully full, and some people get a slight bit nauseous.
But the unpleasantness is temporary -- a few hours at most. But if you look at the alternative (i.e. colon cancer), then the preparation doesn't look so bad.