Tattoos have always been with us. There is nothing new about indelible images incised in the skin—tattoos are older than the hills. Of late, however, there seem to be a lot more tattoos turning up in unexpected places.

Of course, it has always been normal for some people to have tattooed and pierced body parts. Long associated with bikers, criminals, and carnival freaks, tattoos are now increasingly found on college students and teenagers. Even professional people sometimes have them in st...