i have a small (about the size of a pencil eraser) spot on my arm.  It is light brown in color, and does not hurt. But when I rub it there appears to be a lump or knot underneath of it.  It is not raised, the bump is under the skin.  Should I be alarmed?  I am fair complexion, and blonde hair.  thanks
Hi. This is either a lipoma or a sebaceous cyst. It is better to get this removed (excised) for 2 reasons.1> your get rid of the disease and 2> you get the histopathological diagnosis-makes you tension-free.