Conversation: The conversation between human and AI assistant.
[|Human|] I shaved couple of months ago of my head and noticed that back of my head on left side is bone is big. I been to doctor he said its normal, nothing to worry,but its better to get second openion ,so i been to my family doctor he said the same thing ,no need to worry, but today i noticed that behind my left year bone is a little bigger than the left, What to do.
[|AI|]  Hello! Thank you for your question on Chat Doctor! I understand your concern. I agree with your GP in the fact that there is really nothing you should worry about. These are normal physiological variations of bone structures. I would say that nobody is perfectly symmetric. Some it is normal to have some bigger bones, some asymmetric bumps etc. If you have any other symptoms like aggravating headache or nausea I would recommend a brain CT scan to rule out any meningioma(tumors of the brain surface layers), which can cause modifications of the head bones. Hope to have been of help! Greetings!