Do injuries trigger formation of lipomas?

Question

I recently(3 weeks earlier) met with an accident( a blow to the forehead near eyebrows) and i got 6 stitches for that. I noticed last week that there are lipomas formation on my left and right arm, also on the back. I had one such lipoma since 2 or 3 years.

Darrick E. Antell, MD, FACS · Answer

The cause of lipomas is not known. Some have suggested trauma but the idea is that the lipoma could occur in the area of the trauma, not in a distant area.

Jeffrey Ridha, MD · Answer

It is uncertain what the root cause of lipomas are, however there are hereditary conditions that lead to patients having multiple lipomas throughout the body.  Luckily, lipomas in and of themselves are benign tumors that can be removed.  Best wishes.

Ahmed Ali-Khan, FRCS (Plast) · Answer

Hi thank you for your question. I think it is unlikely a blow to your forehead would result in lipoma forming elsewhere. It might be worth seeing a plastic surgeon to have the lumps assessed.
Best wishes.

Norman Bakshandeh Day, MD, FACS · Answer

lipoma formation is genetic and does not have anything to do with trauma. A hard area can develop after trauma to fat but this in not a lipoma, usually fat necrosis and secondary scarring

Karthik Ram, MRCS, DNB · Answer

Hello, thanks for your query. The post trauma lipoma is still controversial there has been studies where there have been lipomas developed after blunt trauma. Firstly, the formation of so-called post-traumatic 'pseudolipomas' may result from a prolapse of adipose tissue through fascia induced by direct impact. Alternatively, lipoma formation may be explained as a result of preadipocyte differentiation and proliferation mediated by cytokine release following soft tissue damage after blunt trauma and haematoma formation. But formation of lipoma at distant site  from trauma is hard to explain.

Do injuries trigger formation of lipomas?

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