I crashed headfirst into a mailbox, a few fractured ribs, (2 1/2 weeks ago). My left side, where I must have fell on (I was unconscious and awoke in hospital), was purple with a 5 or 6 inch long lump in the waste area . When I touch it, the skin burns. It has slowly decreased with time and ice, sports cream, but it seems strange because I don t know what it is. Could it be one of my displaced ribs slid down towards my waste area??