I have a genetic predisposition for colon cancer, and have had nine colonoscopies: one every one–two years.
As others have said: if your colon is otherwise healthy, it is safe and the worst part is the prep.
However, the last time 10 months ago, my body's immune system was stressed by another cancer, and so a tumour developed in only nine months. Because of the risk of more colon cancer during the treatment of the other cancer, the doctors removed my colon, despite it otherwise being "strong, young and healthy". I now poop fluids in a bag glued to my belly: it is better than being dead, but something you'd definitely want to avoid.
I actually miss colonoscopies now. I always watched the screens: it was beautiful and fascinating.
However, the last time 10 months ago, my body's immune system was stressed by another cancer, and so a tumour developed in only nine months. Because of the risk of more colon cancer during the treatment of the other cancer, the doctors removed my colon, despite it otherwise being "strong, young and healthy". I now poop fluids in a bag glued to my belly: it is better than being dead, but something you'd definitely want to avoid.
I actually miss colonoscopies now. I always watched the screens: it was beautiful and fascinating.