Back in January, while loading logs into our wood box at Fernley House, I got the tip of my left index finger caught between two pieces of wood. I did not break my finger, but I hurt it pretty badly nonetheless. It probably would have been worse if I hadn't been wearing gloves, but I always wear gloves while handling firewood. I'm a computer programmer. My hands are how I make my living.
A large bruise soon appeared under my fingernail. The worst of the pain went away in a few days, but the bruise did not. Clearly there was much blood trapped under the fingernail, and they only way it was going to go away was to grow out with the nail. As more time went by, what had been the root of the nail at the time I smashed it broke loose from the rest of the nail, which was slowly re-growing. For the past few weeks, I have been keeping the finger bandaged in an attempt to protect it and keep what was left of the old nail in place.
A couple of days ago, the old nail, which was still covering about 25% of the nail bed, finally broke loose completely. Underneath it was a mostly regrown fingernail. There's still a ways to go yet, but I am hopeful that the nail will eventually recover completely. At the moment, there's a "wave" in the nail, but it's possible that will also grow out in a few months.
All in all, I appear to have gotten off fairly lightly.