so what criteria do docs use to determine whether they sig you or full meal deal you ?
I wonder about
this too. I guess in an ideal world, the docs would always want to know as much as they possibly can. But at what expense? It's stressful to one's body to have chemicals passing through it causing diarrhea. It's stressful to the body to have a tube poked up and probed through the large intestine. The flex sig prep and procedure is certainly less stressful than the colonoscopy, but you also don't have the full picture of what's going on. I don't know how important it is, however, to differentiate between "inflammation for 10 cm" or "inflammation for 20 cm" or "inflammation for 30 cm". I do understand if you can see the limit of inflammation is just in the rectum, and that could probably be effectively treated with rectal meds. You can see that with the flex sig, and determine if you need further treatment as well.
Where do most colorectal cancers grow? Are they anywhere in the colon or mostly distal? That could be a reason to have the whole look-see.