In the 1960s the term sex reassignment began to be used to describe surgical procedures for transgender patients - with the term reassignment borrowed from descriptions of the intents of the surgeries done on intersex infants, since some physicians in the 1960s conceptualized of transgender individuals as having a type of intersex variation. The term was later taken up and continues to be used by transgender individuals to critique the idea of legal sex and note that the practice of assigning sex on birth certificates is arbitrary. This critique came into focus in the mid 1960s when there began to be discussions in New York State of whether individuals should be able to change the sex listed on their birth certificate.