There are other people out there with the same problem. I do know another guy who has it, as well as me. Mine is just a really big indent in the center of my chest, and to me is awful because when I was 15 at the pool and couple of girls came up to me, poking at it asking me what it was, and I had no idea. Ever since then wearing a swimming suit horrifies me.
One doctor I had finally told me the name of it (which I can't remember now) and that it was not a health risk at all, that it is genetic through males. And how I, a female, got it is unknown.
The problem now is that I'm 7 months pregant and every time I breath in it hurts. No hospitals or doctors have been able to help or know what to do at all. The concern is that as the baby grows more, that it's just going to get worse. But no one stills know what to do or anything that might help or if it will hurt me or my baby.
But, there are people out there with the same problem and since I'm 20 now, I'm a LITTLE less bothered by it, so maybe it's just one of those defects that we just have to learn to deal with.