text: It's probably a bruise. A bruise is basically a clot of dead blood underneath your skin. It'll go away on it's own, but it never hurts to check with a doctor just in case....\n\nBy the way, if it is a blood clot, it's a superficial one, not the kind that can give you a heart attack or stroke. Those are caused by blood clots that are inside the veins (called deep vein thrombosis). What you did was open up a blood vessel (popped it) so the clot formed outside of the circulatory system. It'll be absorbed back into your body, but it won't float around and screw things up.