question: Can a colonoscopy actually increase a persons chances of developing colon cancer? I had a colonoscopy 10 years ago at the age of 58. I had a small polyp that was cut out during the prcedure. There was no evidence of cancer. I am one of nine siblings and one of the youngest. Some of my older siblings are nearing 80, all are in good health. No history of colon cancer in the family tree. Right now I am having strong symptoms of colon cancer.