"I don't know what to do about that," Carter said. "I continue to want to make sure that we're tapping into the entire population.”
Currently, face, neck and hand tattoos are against military policy, other than one ring tattoo on each hand, and offensive symbols, such as swastikas, are forbidden.
Previously, there were limits to the number and size of tattoos Army soldiers could have on arms and legs, but those restrictions were lifted last year.
"Society is changing its view of tattoos, and we have to change along with that. It makes sense. Soldiers have grown up in an era when tattoos are much more acceptable, and we have to change along with that,” then-Army Chief of Staff Gen. Ray Odierno said of the policy change.
Different branches of the military have different policies relating to skin ink. The Navy for example, has lifted their ban on full sleeves, while the Marines have kept their ban in place.