A sibling had a colonoscopy in his 40s because he was having health issues, the verdict: colon cancer; after months of chemo, the cancer was surgically removed.  A dear friend of mine wasn't feeling well in her early 30s, the doctor ordered a colonoscopy and colon cancer was found to be the culprit; she had surgery to remove the cancer, she now has to watch everything she consumes because one's diet can lead to colon cancer.  A coworker was not feeling well and thought he had developed an ulcer, upon going to the doctor, the doctor ordered a colonoscopy and they found out he had stage 3 colon cancer, after surgery, he became a survivor.

Without colonoscopies, all of these people would be dead; three people, three colonoscopies and three lives saved.  

Ms. Reid, go ahead and avoid having a colonoscopy if you choose, but please don't give false information about the effectiveness of having a colonoscopy because they do save lives.