If theres billions of bacteria in our mouths, how come when we cut our inner lip we’re not guaranteed an infection?
In: 85
Your immune system is there to take care of it. We have quite strong barriers of defence in any of these mucous membranes as they’re always exposed to a pretty nasty environment.
An interesting fact though is you do actually get small amounts bacteria into your blood stream when you have any kind of even minor trauma to your mouth, eg brushing your teeth. Poor dental hygiene is linked to systemic illness like heart disease.
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