Hello I have hard lump on the side of my lower right jaw. I had my wisdom teeth extracted 9 -10 weeks ago. The lump is restricting my mobility of my jaw. However , I dont believe it to be under the jaw it is to the side of the jaw and is causing some visible swelling to an onlooker. The bump is HARD, not soft, which was peculiar. Is it an infection, bone fragment, what?