This source provides some further enlightening information Three hundred thirty two MTF transgender persons 112 African American 110 Latina and 110 API completed the survey The 3 most common self identified genders were female 36 preoperative transgender 31 and preoperative transsexual 21 Few had undergone sexual reassignment surgery among them 73 identified as female and 24 as postoperative transsexual A majority identified as heterosexual This points out an interesting thing The large majority of the transgender individuals in the survey were pre operative Since the only receptive intercourse available to them is oral or anal they are more likely to engage in URAS Honestly I like the idea of URAS it should be People engaging in URAS as the risk category and we could avoid this whole who s male who s female idiocy