I recently discovered a large, none painful lump in my lower back. It can not be seen just by looking at my back but if you put enough pressure, you can feel it. It is about an inch wide and is shaped slightly like an oval. It moves under my skin and i suspect it is a lipoma. I do, sometimes, feel like a nerve is being pinched and it feels like the pain spreads down to my lower thigh. The only think that is making me thing that it is not a lipoma is that is is hard all around. Can lipomas be hard or are they always soft?