How are hemorrhoids not dangerous?

Question

If I had an open wound on my body, I would imagine rubbing excrement in it would cause infection. For hemorrhoids, it is often the excrement that causes the bleeding as it rubs itself on the wound. How are hemorrhoids so common but infection from them not?

In: Biology

Answer 1

I always think back to my medical school textbook which described the anus/rectum as being so well-perfused that it usually “heals beautifully” (their words, not mine).