After century of removing appendixes, doctors find antibiotics can be enough
It would be interesting if someone were to compile a list of surgical procedures that have been performed too proactively throughout history. Uteruses, molars, tonsils, breasts, I think some cases of prostate cancer, now appendixes. My list might contain huge errors - I am not a medical professional, but even as a medical layperson, it's really remarkable how common this general type of situation occurs.