I hope someone can help me answer a question about my girlfriends teeth and gums. I understand this may not be the correct place 'at this moment' but it concerns me dearly. As of course I love her and my concern is she smokes a lot!

It is the blue gums around nearly all her teeth, she is 43 and I am not sure if it can be cured/treated. She says it is not from smoking but runs in the family. But I am sure it can not help. Maybe it is the look I don't like. Any answers would be much appreciated, at least I can worry or understand for her.