How a reference book turned a social judgment into a diagnosis
A medical dictionary does more than define words: it records which ideas medicine treats as legitimate categories. When older editions of Taber’s Cyclopedic Medical Dictionary classified homosexuality as a psychiatric disease, they presented a prevailing medical judgment as if it were a settled fact about the person.
That judgment blurred two different things: a person’s sexual orientation and the distress or difficulties they might experience. The label implied that being gay or lesbian was itself a disorder, rather than asking whether a particular person was suffering or needed help. This distinction matters because a diagnostic label can shape what clinicians look for, what care they offer, and how families and institutions treat someone.
Why the classification changed
Medical categories are made and revised by professional institutions; they are not timeless descriptions of nature. In 1973, the American Psychiatric Association removed homosexuality itself from its diagnostic manual. That change reflected growing recognition that same-sex orientation, on its own, was not evidence of mental illness. Older terminology could nevertheless remain in reference works as editions were updated at different times.
The history is a reminder that a label in a medical book can carry authority without being neutral. In this case, changing the classification meant that the presumed problem was no longer the person’s orientation; attention could instead turn to actual distress and to the social conditions that produced it.
