Colonoscopy, are there any risks? How to prepare for the exam

It can be unpleasant and a little annoying, especially for the preparation, but the risks and possible complications are very low. We are talking about colonoscopy, an important and potentially life-saving exam against colorectal cancer (and more). However, still many citizens do not adhere to the prevention programs which, moreover, thanks to the pandemic, in 2020 were strongly delayed.