Yes they will run a scope up into just a rectum. First, he hurts you with the”digital exam”. I know this because i felt it even with sedation. During this part they look for fissures, hemorrhoids, and general tone of sphincter. Next the scope is inserted and things like polyps are looked for inside.
These are the same basic things done in a regular colonoscopy, there is just less to look at. So colectomy does get a scope too.