I agree get it checked just in case.
mkh9
There is a great chance it is a fatty lipoma, which is nothing to worry about, and they are quite common, I do recommend that you have your Dr. examine just in case especially if it begins to bother you, I have had several of these and a couple removed, after biopsy results returned it was determined it was just fatty lipoma. I have cancer in my family tree so it scared me, that is why I had the biopsy done, I dont think you have anything to worry about, but get it checked out just to be sure. Good luck..