My two year old son fell down our stairs a few weeks ago. I couldn t move fast enough to catch him. He hit the top left side of his forehead and ended up with a two to three centimeter hematoma. It was reddish and purple toward the center but slowly began fading in color and size after a few days. It s been about three weeks and I thought it was pretty much absorbed. Tonight though, I noticed that there is a bump. Not huge, but it just seems strange that he seemed to be healing fine and now I notice a smooth hard bump that I missed before. My questions: If his hematoma is calcifying, is there anything I can do now to help it? How long does it take to calcify? ... Will the bump continue to grow? As he grows, and his head grows, what happens to the bump? Will it stay the same size, get bigger, smaller, etc.