had one last week and they took a few biopsies and they give you a card to tell you the signs to look for if you have a bleed you need to make your way to a&e but touch hairy wood ive had a few scopes and no probs after,well apart from the time i set up an account on my pc afterwards and the next day had no feckin idea what my passwords where,hence they tell you not to do this stuff haha
good luck mate