Colorectal Polypectomy Upon Insertion And Withdrawal Or Upon Withdrawal Only?

The investigators aim to assess the procedure time and miss rate of polyps when performing polypectomy in the colon on the way up* and down** or only on the way down**.
(* advancing the scope to the cecum, ** pulling back the scope after intubation of the cecum). Our hypothesis is that using the strategy to remove all visible polyps firstly on the way up and secondly on the way down is less time consuming and misses less polyps as with the strategy to remove polyps only on the way down.