Colonoscopy prep is a picnic compared to that. Trust me. I know. To confess: I was rather stupid in my 20s and 30s. I smoked ...

An upper GI endoscopy happens through the throat, while a lower GI colonoscopy involves entry through the anus. Find more ...

Let’s start with the cheapest, the yearly FIT, or fecal immunochemical test, which looks for fecal blood that might be caused ...