s nothing but if it were to be a lymph node or a
breast lump it will need a biopsy time is important . if it is red and painful it could just be a a number of minor things but still needs checked, Deeper bumps don't mess with it either way time is important, keep track of things until you see the doctor which you should call today .Go in prepared see if you are running a temp, do you sweat at night ?are you loosing weight, Mark the lump ,has it grown? is it painful?