Small Indentions Appearing On My Skin Did I Break My Knuckle?

Did i break my knuckle? - small indentions appearing on my skin

I play volleyball for the following months, I was beating my fingers on the floor of the little finger during practice and games. does not hurt to move, but if I just appear two small dents and hurt them. If I bend, is a burden a little too much. greenish light, but not badly beaten. It hurts when I touch only slightly, and it really hurts them when I was a little harder hit. Sometimes a few of his fans, but usually not so bad. is sprained or broken or difficult to hit?