A recurrent theme I’ve observed lately on trans blogs is the mis-application of Harry Benjamin’s Sex Orientation Scale (S.O.S). This scale was published in 1966 with the release of Benjamin’s groundbreaking book The Transsexual Phenomenon.
With a few significant corrections (e.g. later researchers have noted that sexual identity and sexual orientation are certainly not as closely correlated as Benjamin’s initial scale implied), I think the scale holds up surprisingly well. But it doesn’t hold up well at all in the case of people who want to use it for purposes divorced from Benjamin’s intent.
The S.O.S. was developed to address the need for a diagnostic tool which accounted for a group which, at the time, was entirely unrepresented in the medical literature. Previously when seeking professional treatment, transsexuals had been (mis)classified as either homosexuals or transvestites and (mis)treated accordingly. Benjamin wanted to call out, in practical terms usable in clinical practice, a more suitable set of guidelines for accurately diagnosing and effectively treating transsexuals.
He knew it wasn’t a perfect tool – in fact he took pains to point out some of its known flaws. Here is a telling excerpt from Benjamin’s introduction of his S.O.S (all emphases below are mine):
“The following chapters will make use of the types from I to VI in relating case histories and in establishing a diagnosis of the respective patients. Referring to Table I will then enable the reader to get a somewhat clearer picture of the particular individual and his or her problem. It should be noted again, however, that most patients would fall in between two types and may even have this or that symptom of still another type.“
Or, in laymans’ terms, these are approximations. They’re intended to help physicians establish patient diagnoses. Don’t expect any single individual to fall neatly and perfectly into any of these types. They’re intended as practical guidelines, not hardbound rules.
He goes on to say:
“It has been the intention here to point out the possibility of several conceptions and classifications of the transvestitic and the transsexual phenomenon. Future studies and observations may decide which one is likely to come closest to the truth and in this way a possible understanding of the etiology may be gained. If this etiology should ever be established through future researches, classifications may have to be modified accordingly. In the meantime, the S.O.S. may serve a pragmatic and diagnostic purpose.“
Layman’s translation: This ain’t gospel. It’s a work in progess. I’m relying on you – medical professionals – to keep this thing in harmony with the best available evidence. I hope you find it useful. If not, please make it better.
Here’s a quick flowchart showing Benjamin’s message about the purpose of the S.O.S.
Another item of note: Benjamin didn’t put much stock into the whole “early” versus “late” transitioner when it came to his standards. And he most definitely did NOT see these types as something any given patient must fulfill to the letter from initial presentation through final treatment. He observed patients initially diagnosed as one type who dramatically shifted to another over time, based on the totality of the evidence. He accepted this as a natural part of the diagnostic process.
Unlike less reputable researchers into transsexual lives, Benjamin didn’t assume that a patient was a liar for revealing something which challenged his preconceptions. He always assumed his own understanding of all the intricacies of how this condition affected individual lives to be incomplete.
Benjamin makes it pretty clear how he himself used these standards in relating examples of three different types of transsexuals. One such story begins with the patient showing up at Benjamin’s office at the age of 28, married, father of three children, a successful salesman, and asking for help because his recurrent transvestism was threatening his marriage.
Type III transvestite, you might think? Benjamin implies that was his initial diagnosis. But as more evidence came to light his diagnosis changed. That person described above is his example of a Type VI “high intensity” transsexual. They don’t get any more transsexual in Benjamin’s book.
If an expert like Benjamin could err so dramatically in diagnosing a patient, why do others seem so certain they can grab a few facts about a person – like marital status, age, and crossdressing history – and make a slam-dunk, unchangeable diagnosis every time?
Benjamin’s work was all about helping people. He found transsexuals a miserably unhappy and tragically underserved segment of the population. He didn’t look for someone else to blame. He rolled up his sleeves and made fixing this problem his life’s work. Those who use that work as a basis for belittling, mocking, and abusing others could not be more divorced from the example of Harry Benjamin himself, and do his legacy no favors.




Very nicely said, Diana. As for ” belittling, mocking, and abusing” others, I can do that all very well on my own and need no help from Dr. Benjamin.
You are most astute in pointing out that Benjamin considered his SOS a work in progress. It was an INITIAL STARTING POINT TO BE FURTHER REFINED as more work was done and more research compiled.
I also agree that Benjamin’s work serves as a basis, a “rough tool” and not as a hard and fast immutable measurement. The truth is that we all come in D I F F E R E NT sizes, shapes and colors. We all come to where we are by different paths.
What MATTERS, I think is WHERE and HOW we end up. If we end up totally screwed up and/or lost and lonely, then I guess we must have made some FUNDAMENTAL MISTAKES. THAT HAPPENS far too much IMHO.
It is sad and tragic. It is one of the main reasons that I speak so vociferously against this, “we are all the same” BS. The facts are that WE ARE NOT ALL THE SAME. Even Benjamin noted that in his SOS.
Until those differnces are honored and respected, there will be no end to this acrimony.
“What MATTERS, I think is WHERE and HOW we end up. If we end up totally screwed up and/or lost and lonely, then I guess we must have made some FUNDAMENTAL MISTAKES. THAT HAPPENS far too much IMHO. “
I very much agree. But I think it happens in both directions.
Sometimes people pursue full transition and surgery and end up miserable because that wasn’t the right treatment for their actual condition.
But at least as often people convince themselves that they can handle their gender problem by insufficient means, and they end up in crisis (or dead) before they ever seek the help they need.
I wish people would put a lot more focus on living happy and fulfilling lives as they put on transition milestones. Some people can’t be happy or fulfilled without transition. But many certainly can. They’ve just got to match themselves with the right kind of treatment without worrying what other people may think.
BINGO! “Different strokes, for different folks.”
However in order to be able to progress to a point where one can discuss the appropriateness and/or the value of the various treatment therapies there has to be an agreement upon nomenclature and terminology.
The need for a common language not nuanced by “values” and agenda is STEP NUMBER ONE. Hence my vociferous objections to the fuzzy feel-good term, TG.
Really Anne, I’m not sure clear terminology helps nearly as much as compassion. Obviously, I’d prefer both.
[...] Posted by valerielnelson A recurrent theme I've observed lately on trans blogs is the mis-application of Harry Benjamin's Sex Orientation Scale (S.O.S). This scale was published in 1966 with the release of Benjamin's groundbreaking book The Transsexual Phenomenon. With a few significant corrections (e.g. later researchers have noted that sexual identity and sexual orientation are certainly not as closely correlated as Benjamin's initial scale implied), I think the scale … Read More [...]
Thank you for this congent explanation! I wonder if those who misuse Dr. Benjamin’s scale will read it and maybe even comment.
Just a quick comment. There is a reason why he called it phenomenon. These are very careful observations with certain conclusions drawn. He meant this as a starting point of the development of an understanding of the phenomenon of Transsexualism as he understood it.
There are so many that cannot understand that phenomenological study, which is really what Benjamin undertook is what is most needed.
I want you to decide if you wish to publish this. I seem to attract unfortunate attention and do not want to hi-jack your blog into a confrontation that has nothing to do with the issues. I am glad you posted this. It is of utmost importance in my respectful opinion, to have this kind of discussion.
Thank you