They are directly behind my front two teeth and I can see them when I put a mirror in my mouth. They feel like hollow rings of cartilage or something of that consistency under the skin and the skin goes over the obviously soft. Since I was little (I just turned 18) and assumed everyone else had them but learned today that neither of my sisters or my mother has them or has ever heard of anyone having them so I though I would see if it's abnormal or not. They don't bother usually but sometimes one or both will get kind of swollen and hurt. Is this something to have checked out specifically in case the dentist missed it in regular exams or should I just leave it alone and more importantly does anyone know of someone who's had something similar?