Are rectal stretch marks visible?

Are stretch marks visible outside and inside the rectum as a result of using large object insertions and ejections? And, can the rectum be enlarged permanently from stretching?

Of course!on an occasional practitioner,2-3 times a year,no,but if you are anal addicted,only penis penetration,yes all the proctologist will see:the anus became deform,the sphincter will goes inside,after years of practice,especially if you start young;so,if you are into stretching,then your anus became oval,the skin around wrinkle,darkened.....

Hint, they are called 'marks'. Do you really need an answer past that?

I must say that "anal stretch marks" is a new thing for me, and might be just someone's fantasy.

The rectum shrinks back to its original size after being stretch by a load or an insertion. There are no marks inside or out to indicate stretching, although it might take some time after repeated large insertions/plugs.

The anus, or anal sphincter is another muscle that can stretch, but also returns to original shape/size. However, repeated/lengthy stretching can result in an over-taxed muscle that does not function properly. Like over-taxing any muscle, it weakens and may not be able to hold toys or feces in.

Sorry, no anal stretch marks, but loss of control can be experienced. Depending on size of inserted device, the anal sphincter and the rectum can be torn causing bleeding and pain. But relax, there is nothing to be seen here.

Of course, I could be wrong, so any verifiable evidence contrary to what I've said would be appreciated.