I don't remember hitting my hand on anything, but I did have a big spill to clean up last night where I was scrubbing with a cloth for long time and then used a vacuum. When I was done, I noticed a purplish spot on the back of one of my fingers. I can still move my fingers, so I don't think it's broken. Today the purple area spread more and it's a lot darker. Has anyone else had this strange injury (if it's an injury), or maybe it's something more serious? I'm not finding a lot of information on line, and what I've found is vague. Just wondering if someone had anything similar that turned out to be minor trauma and healed on it's own or if it was a sign of a serious problem.