HI, i finally got over my anal fears after my sigmoidoscopy, but a few weeks later i got worried again and thought i would check, so here is what i did and what i am worried about, I lay on my right side with my left leg raised, i inserted my finger into my rectum fully, then i pushed my finger to the left, towards my groin area, then pressed down feeling through the lining into the muscular parts beneath, i felt a tiny Blade like structure, only about 1cm in length, running horizontaly towards the inner sphincter muscle, it felt Kind of Finn like and i could move the side of my finger back and forth over it and it would flip from side to side, it was very hard to reach but i think i managed to follow along it and it feels like it runs upwards into the inner sphincter muscle. Does this sound like normal anatomy. I would only like this answered by someone with medical knowledge please, i know i have gone into detail quite a bit but i wanted to get it clear, no mickey takers please.