February 25, 2016

Did you know that trepanning was a Medieval surgical procedure in which a hole is scraped into a person's head? The purpose was to expose the dura mater, which lies underneath the skull, to treat health problems involving the brain. When someone acted funny or complained of a chronic migraine, they had a hole drilled in their head to release evil spirits. However trepanning was also used as an emergency surgery for removing shattered pieces of bone in the head.