It could be an ingrown hair. If you just got you hair cut, they could have cut the hair shorter in that area and it could have caused a slight infection. Does it hurt? If it gets bigger or changes color or shape, I would have it looked into.
no it dont hurt, its not exactly underneath my haitline just a little underneath it....thank u i thnk i got it checked a few yrs ago so i thought it was me rght side but the lump isnt there no more now its on left side...im driving myself crazy LOL so idk