Scar Tissue or Muscle?

I’ve got a question about my legs, I havent squatted for a while now because I am working on my vert (i know i know not in the BB forum) BUT on my left leg I have a BIG bump on it that seems to be muscle but wondering if it could be just so much scar tissue build up in the leg from always doing heavy squats n such…any thoughts?
I don’t have the same thing on my right leg…just a little weird how it bumps out like that.

Pics or it aint true!
How big? where? etc

Whenever I find a “lump” anywhere, I always make sure to ask the Doc about it just in case.