Conversation: The conversation between human and AI assistant.
[|Human|] My 5 year old son collided with his sister(heads) full speed over a week ago and knocked him back on the cement and he blacked out for a few seconds. He recovered well but now has a half baseball sized squishy bump on his head near where he hit the cement. He has not complained and it is not terribly sensitive to the touch but I am concerned because I feel an indentation in the bones of his skull around the squishiness. He has acted completely normal and energetic.
[|AI|]  Thank you for posting your question. The bump on the head that you feel is most likely due to local swelling following the hit. The indentation of bones however is not likely as the bones of a five-year-old are not normally supposed to be soft enough to give way to local swelling. Also, if your child is playful, eating well and not complaining of pain, serious consequences can be ruled out to a great extent. Having said that, if you still feel that his skull is showing some bony depression, I would suggest a medical consultation and if required at least an X-ray skull may be done to rule out skull fracture. If you have any more doubts, do write back.