ELi5 Why are assholes not festering?

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I’m just curious why are assholes which is constantly exposed to germs is not causing any infections or at least getting irritation from being constantly exposed to shit which is dirty.

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Anonymous 0 Comments

They’re being exposed to bacteria that are already present in your lower digestive tract. Those bacteria can be harmful *if you eat them* (fecal-oral is a very common way that food poisoning bacteria spread), but they’re not dangerous in your intestines or (directly) dangerous on your skin (except that having them on the skin of, say, your hands can be a good way to end up with them in your mouth).

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