Those who are writing and researching in this area would do well to adopt his clear and concise vocabulary." Androphilia – The romantic and/or sexual attraction to adult males.
The term, along with gynephilia, is needed to overcome immense difficulties in characterizing the sexual orientation of transmen and transwomen.
Male-to-female transsexualism has sometimes been called "Harry Benjamin's syndrome" after the endocrinologist who pioneered the study of dysphoria.
For instance, it is difficult to decide whether a transman erotically attracted to males is a heterosexual female or a homosexual male; or a transwoman erotically attracted to females is a heterosexual male or a lesbian female.
Any attempt to classify them may not only cause confusion but arouse offense among the affected subjects.
Another reason for objecting to the term transsexual is the concern that it implies something to do with sexuality, when it is actually about gender identity.
For example, Christine Jorgensen, the first person widely known to have sex reassignment surgery (in this case, male-to-female), rejected transsexual and instead identified herself in newsprint as trans-gender, on this basis.
Harry Benjamin said in 1966: ..seems evident that the question "Is the transsexual homosexual?