Hi, I had my colonoscopy today and watched the process on screen. What I saw wasn't clearly defined polyps (like the ones I've Google but know I shouldn't) instead it was a quite large area that had a smooth but lumpy surface. It wasn't bleeding, it didn't look "scary"; just like a big section of my rectum had grown inward.

When the endoscopologist saw it he said to his nurse "that's it there".  They took three biopsies from it in different areas, but I just can't get it out of my head that it didn't look like a polyp/group of polyps. He's booked me in for a pelvic xray as he did a digital examination afterwards and felt a fullness that he couldn't identify and just wanted to get things fully checked out to be thorough. 

I'm only 35 and have no direct family history of bowel cancer; I do have one auntie who had to have polyps removed. I'm trying to hold on to the likely-hood that this is a benign polyp. 

I would like to know how likely this is, and also what is the procedure when removing a large polyp? Will they always remove a polyp if it is benign but causing symptoms? Could it be something else (if it was an area of inflammation then would it not be bleeding; I've had two quite big bleeds in past few months, but saw no sign of blood today?)

Thank you so much for your time.