Blood Group Tattoo

From BMEzine Encyclopedia

Quite common among people who have served in the Armed Forces (Army, Navy or Airforce) is a tattoo of the wearers blood group, such AB or AB negative. Ostensibly used to give a medic quick information in the case of an injury which leads to a Blood Transfusion, it is more likely that the tattoos have a placebo affect of giving the wearer peace of mind. Though it is possible that a tattoo like this has saved a soldiers life.