Brief Answer:
Less likely to be a serious concern but suggested clinical examination

Detailed Answer:
Hi XXXX,
Thanks for writing in to us.

I have read through your query in detail.
Please find my observations below.

1. It is possible that there was injury to the soft tissue under the skin in the forehead region. It will help to know the size of the lump to get a better idea of the injury and if there is any skin discoloration over it. It is unlikely to be a serious concern if you do not have any symptoms like pain, vomiting, dizziness, headache, running clear fluid through nose and sinus problems. You might upload a picture of the lump for a better discussion.

2. The soft tissue under skin in forehead region has a rich blood supply and it is possible that there is a small hematoma or collection of blood under the skin.

3. Such a swelling should resolve in a few weeks and if there is no decrease in the size of the lump since the day of injury then it is necessary to do a clinical examination and then if required then a CT scan of head might be done. It will show if there is any collection or mild injury causing the lump.

Hope this answers your question. Please feel free to correct any oversight in my interpretation of your problems and discuss them in detail as per your requirements.

Hope your query is answered.
Do write back if you have any doubts.

Regards,
Dr.Vivek

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