Scarification has been used for many reasons in many different cultures:
Scarification has been used as a rite of passage in adolescence, or to denote the emotional state of the wearer of the scars, such as times of sorrow or well-being. This is common among Australian Aboriginal and Sepik River tribes in New Guinea, amongst others.
The Māori of New Zealand used a form of ink rubbing scarification to produce facial tattoos known as "moko." Moko were considered to make the body complete as Māori bodies were considered to be naked without these marks. Moko were unique to each person and served as a sort of signature. Some Māori chiefs even used the pattern of their moko as their signatures on land treaties with Europeans.