I was jamming during a scrimmage on 2/4 and got knocked down several times. I fell on the same place on my leg that I bruised before. It wasn't healed yet. The impact pretty much dead-legged. You can see the result.
That night I woke up sobbing because any little thing that touched the area that surprisingly has no coloration made my skin burn and sting. It hurt so badly and was (is still) swollen about an inch puffier than the rest of my thigh. Luckily the next day that same area went numb. I still can't feel jack on that lump, but the rest is still tetchy.