I pop my knuckles by bending them back. Last week I was frustrated, and popped my middle finger back too quickly and kinda hard, which hurt when I did. My finger hurt for a couple of minutes and that's all. Now I notice there is a small, hard bump at the inner base of my middle finger. It hurts when pressure is applied to it, especially when I'm driving or opening a door by the side. It doesn't hurt other than that and I can still pop that finger without pain. What is it and will it go away?
Picture: http://i236.photobucket.com/albums/ff157/schmiddy90/Untitled123.png
Picture: http://i236.photobucket.com/albums/ff157/schmiddy90/Untitled123.png