Conversation: The conversation between human and AI assistant.
[|Human|] Hi, I have a hard lump on the side of my head(infront of my ear) that I have had for quite a while. It is not sore, but can get uncomfortable when sleeping or sometimes when i stretch my jaw(yawning etc). I wonder if you could shed some light on the matter?
[|AI|]  Welcome to Chat Doctor .1. Even if the lump is not sore, Not active in infection it could be at insertion point of the muscle, tendon.2. So over a period it will cause that muscle, tendon, nerve ending irritation and cause pain / discomfort.3. In this case it could be lipoma - fat containing lesion - According to your description.4. Let it get examined and get an ultrasound scan done - it will help to find out the nature of the lesion its source and extensions.5. After that you can plan for excision. (if its causing discomfort and progression in growth) Good luck. Hope it helps you. Wish you a good health. Anything to ask ? Do not hesitate. Thank you.