This post takes me back to when i was working.Mine was a lipoma,but i had no idea at the time,it move around till i kid you not,it got two finger widths from my testicles,the pain was agony,it knocked me off my feet when it decided to move.It was removed at Otley Hospital the area was frozen with a rather large needle,luckily for me there were no blood vessels in it according to the Surgeon..Not nice but not serious either.