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
I asked this same question to my doctor years ago. He indicated that certain parts of body have more capillaries and thus higher/faster immune response. This being one of them. I imagine minor infections get wiped out all the time and you never know.
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