"Pre-Op Trans" is a term used in the adult industry to describe pornographic content involving individuals who are transgender but have not yet undergone or have only partially undergone gender reassignment surgery. The term "pre-op" is short for "pre-operative," referring to the fact that the individual's original genitalia is still present and may be featured in the video. These videos often showcase sexual activity involving the original genitals, as well as any emerging secondary sex characteristics of the transgender person. The content can include masturbation, oral sex, or penetrative sex, with both trans and cis partners.