Hi there, My 10 months old fell off the couch hitting a hard floor. He cried really hard for about 25min and fell asleep after that. He hit the back of his head, all I saw is a reddened area but no bump. My husband said, let s watch him before thinking the worst. But I m afraid and I would like to know what could happen now or what if he had an internal bleeding? What are the sign to look for?