What Would A Longstanding Bruise On Bridge Of Nose Be?

Hi.

I have had what appears to be permanent bruising on the inner eye/nose just about at the level of the bridge of the nose for over two years now. First noticed after a long haul flight so thought it because I was tired but they have not disappeared, even when fully rested.. I reckon it must be showing something wrong in my body. I do wear glasses but the nose peice is solid (not those dratted movable pads) and way below they bruised area.