So basically there is something hard in my anus (around 3~4 cm deep, and probably ~3mm big). It doesn t hurt at all, and it feels like a bone. I am kind of worried about its identity as I never heard of something like this. It doesn t prevent anything from going down, it s just on the anal wall (sorry for bad english, used google translate for these last words). What is it? Is it the prostate? I did some research and it might be internal hemorroids. But I m not sure. I heard that hemorroids disappear after a few days, so what should I do?