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> We thought the appendix was useless turns out it has many uses.

Can you elaborate?

I recently learned that current appendectomy procedure (at least in Europe) calls for the removal of the appendix even if a surgery should reveal that the organ is in fact completely healthy – because the procedure from that point is considered so unrisky, and the organ considered so useless, that the potential future risk of a medical professional misinterpreting the existence of an operational scar as an indicator of a previously performed appendectomy is deemed more problematic.



One recent theory suggests that the appendix acts as a safehouse for beneficial gut bacteria in the event that the gut microflora is wiped out:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3551545/




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