The purpose of this article is the medical speech about what is known as ‘sexual abnormalities’. Under to dissociate the disease from the defect, in around 1900, doctors, while adopting an objectivist position, referring to homosexuals as a pure subject of study, feel the need to ‘give the patient the voice’, as if, by using the patient’s ‘voice’, additional meanings were supposed to be added to the medical presentation. In the interstices of the medical speech, it is the subjectivity of the inverti that emerges.