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
Is gravity and pressure a friend here as well?
Yes, there is an open wound that is bleeding. Yes, the bleeding was caused by abrasion from the excrement. But the blood is going to follow the path of least resistance, taking debris/foreign bodies with it as it flows.
Just thinking out loud, but v interesting question.
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