Conversation: The conversation between human and AI assistant.
[|Human|] hi, my 3yo son fell extremely hard hitting his head on a retaining wall. we took him to the local hosp where he had a ct  they advised us no fracture was see. however he still weeks later has a visible 3cm dent to his forehead. should we be concerned? thank you .
[|AI|]  Hi, I had gone through your question and understand your concerns. You should be worried but not too much. Pay attention to his behavior and complains. If he doesn't have nausea, vomiting, headache, not faints then it is OK. In other case consult hi at neurosurgeon. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. I will be happy to answer your questions. Wishing you good health.