Why Respect for Identity and Accurate Clinical Information Are Not in Conflict
Modern healthcare increasingly recognises the importance of respecting a patient’s gender identity. Preferred names and pronouns form part of respectful communication, and transgender patients should expect the same dignity, confidentiality and professional treatment as any other patient.
Anaesthesia, however, presents a particular challenge to overly simplistic definitions of sex and gender.
An anaesthetist does not deal solely with how a patient identifies. Anaesthesia involves the management of anatomy, physiology, pharmacology and the physiological consequences of surgery. Airway dimensions, respiratory physiology, cardiovascular risk, body composition, reproductive anatomy, previous surgery and medication can all influence anaesthetic management.
The clinically important question is therefore not whether gender identity should be respected. It clearly should.
The more difficult question is this:
Can gender identity safely substitute for biological, anatomical and physiological information during peri-operative assessment?
The answer is no.
Importantly, contemporary professional guidance largely recognises this distinction. The Association of Anaesthetists recommends that patients should be able to disclose both their sex at birth and gender privately during pre-operative assessment, while also recommending that preferred names and pronouns are respected. It additionally recommends establishing the patient’s history of medical and surgical gender affirmation. (Association of Anaesthetists)
These are not contradictory requirements. They represent two different aspects of good patient care.
Identity Is Not an Airway Assessment
Perhaps nowhere is the distinction more obvious than in airway management.
An anaesthetist preparing to induce general anaesthesia must answer practical questions.
Can the patient be ventilated?
Can the trachea be intubated?
What size airway equipment is appropriate?
Has the airway previously been surgically altered?
Would emergency front-of-neck access be possible?
Gender identity alone cannot answer these questions.
A transgender woman who experienced typical male puberty may retain anatomical characteristics established during that development despite subsequent hormone treatment or genital gender-affirming surgery.
Conversely, it would be equally dangerous simply to assume that her airway remains anatomically identical to that of a cisgender man.
Some gender-affirming procedures specifically alter the airway.
Vocal feminisation procedures, for example, can surgically alter the vocal cords and glottic opening. Anterior glottoplasty shortens the functional length of the vocal folds and can reduce glottic dimensions, potentially requiring a smaller endotracheal tube during subsequent anaesthesia. (OpenAnesthesia)
The implications can be even more significant.
The Association of Anaesthetists specifically warns that patients who have undergone cricothyroid approximation may no longer possess conventional cricothyroid membrane anatomy. Standard emergency front-of-neck airway techniques may consequently be impossible or require modification. (Association of Anaesthetists)
That is potentially life-saving information.
The lesson is therefore more sophisticated than simply saying that biological sex determines the airway.
Birth sex provides clinically relevant developmental information, while subsequent surgery tells the anaesthetist how that anatomy may since have been altered.
Both matter.
Respiratory Anatomy Does Not Simply Change with Gender Identity
Gender reassignment involving genital surgery does not reconstruct the lungs, bronchial tree, diaphragm or thoracic skeleton.
Likewise, hormone treatment does not simply replace one respiratory system with that conventionally associated with the opposite sex.
But transition can still have respiratory implications.
Chest binding, for example, may influence respiratory mechanics and lung volumes. OpenAnesthesia notes reports of respiratory symptoms among people regularly using chest binders, while the Association of Anaesthetists recommends that binders should ideally be removed, with consent, before anaesthetic intervention. (OpenAnesthesia)
Therefore neither statement—
“The patient is biologically male/female, so nothing else matters”
nor—
“The patient identifies as male/female, so birth sex is irrelevant”
—is adequate for anaesthetic practice.
The anaesthetist needs to know the patient who is actually lying on the operating table.
Hormonal Treatment Matters
Gender-affirming hormone therapy adds another layer of complexity.
Testosterone and oestrogen can produce physiological changes relevant to peri-operative medicine, including changes in body composition and laboratory measurements.
Haematocrit and creatinine, for example, may change following established hormone therapy. Other biochemical measurements may also shift. (OpenAnesthesia)
This creates an important principle.
Some characteristics may continue to reflect sex-related development before transition.
Others may increasingly reflect the physiological effects of long-term hormone therapy.
Others may have been surgically altered.
The anaesthetist therefore cannot safely reduce a patient to a single administrative category.
Indeed, the Association of Anaesthetists notes another interesting pharmacological problem: current pharmacokinetic models used for target-controlled intravenous anaesthesia have not been validated specifically for transgender and gender-diverse patients established on hormone therapy. Its guidance consequently recommends processed EEG monitoring when TIVA is used in this population. (Association of Anaesthetists)
That illustrates precisely why biological information remains relevant.
Pregnancy Demonstrates the Problem Particularly Clearly
Pregnancy testing provides perhaps the simplest demonstration of why gender identity and physiological capability cannot be treated as interchangeable concepts.
A transgender man may retain a uterus and ovaries.
Testosterone frequently causes amenorrhoea, but cessation of menstruation does not necessarily mean that ovulation has permanently ceased. Pregnancy can therefore remain biologically possible in appropriate circumstances. (OpenAnesthesia)
The Association of Anaesthetists recommends offering pre-operative pregnancy testing to patients aged 12–55 who possess both a uterus and ovarian tissue. (Association of Anaesthetists)
Notice what this approach does.
It does not fundamentally ask:
“Is this patient a man or a woman?”
It asks:
“Does this patient possess the anatomy and physiology necessary for pregnancy?”
That is a much better clinical question.
Likewise, automatically pregnancy-testing every patient whose electronic record says “female” would be meaningless if that category included a transgender woman who was assigned male at birth and does not possess ovaries or a uterus.
Anatomy determines the clinical requirement.
Sex at Birth Is Relevant — But It Is Not Enough
This leads to an important qualification.
It would be tempting to solve the problem by simply recording “biological sex” and regarding the matter as settled.
That would also be clinically inadequate.
Consider a transgender woman assigned male at birth who has subsequently undergone facial reconstruction, thyroid cartilage surgery and vocal feminisation surgery.
“Male at birth” provides useful information about previous biological development.
It does not adequately describe her current airway.
Likewise, knowing that a transgender man was assigned female at birth does not tell the anaesthetist whether he retains a uterus, ovaries or breasts, whether he has undergone hysterectomy, whether he takes testosterone, or whether previous surgery has altered other anatomy.
The safest approach is therefore to record several distinct pieces of information rather than attempting to force everything into a single box.
What Does the Anaesthetist Actually Need to Know?
A rational pre-operative assessment should distinguish between:
Gender identity — important for communication, dignity and respectful care.
Sex recorded at birth — potentially important because it provides information concerning biological development.
Current anatomy — what anatomical structures are actually present now.
Previous surgery — particularly procedures involving the face, neck, airway, chest and reproductive system.
Hormone therapy — including the drug, duration and relevant physiological consequences.
Individual physiological assessment — including airway examination, respiratory function, cardiovascular status, blood results and other conventional anaesthetic considerations.
This is substantially more useful than attempting to make the words male or female carry all of this information.
Respectful Questions Are Not Discrimination
There is another important issue.
Healthcare professionals can understandably become apprehensive about asking questions concerning biological sex, reproductive organs or previous gender-affirming surgery because they fear causing offence.
But avoiding a clinically necessary question is not compassionate if the missing information increases anaesthetic risk.
The solution is to explain why the question is being asked.
For example:
“Some previous operations or hormone treatments can affect the way we manage your anaesthetic and airway. I therefore need to understand what procedures you have previously undergone and what medication you currently take.”
That is neither confrontational nor judgemental.
It is ordinary clinical history-taking.
The same principle applies throughout medicine. Anaesthetists routinely ask patients deeply personal questions about pregnancy, alcohol, recreational drugs, smoking, previous operations, medications and medical conditions.
The justification is clinical relevance.
Transgender patients should receive the same principle: ask what is necessary, explain why it matters, maintain confidentiality and treat the answer professionally.
When Inclusivity Becomes Clinically Counterproductive
The legitimate concern surrounding inclusive terminology arises when administrative language begins obscuring rather than clarifying clinically important information.
An electronic patient record that tells the anaesthetist someone’s preferred pronouns but fails to make clinically relevant anatomy, sex at birth, hormone therapy or previous airway surgery accessible has not become more sophisticated.
It has become less clinically informative.
Equally, a system recording nothing except “biological male” or “biological female” may overlook major anatomical and physiological changes produced by surgery and hormone treatment.
Neither extreme represents good medicine.
The objective of medical documentation is not to settle philosophical arguments about gender.
It is to transmit the information necessary to treat the patient safely.
That requires precision.
Two Truths Can Coexist
Much of the public discussion surrounding transgender healthcare presents two propositions as though clinicians must choose between them.
Either:
A person’s gender identity must be respected.
Or:
Biological sex matters medically.
Anaesthesia demonstrates why this is a false choice.
Both statements can be true simultaneously.
A transgender woman’s identity as a woman can be respected completely while the anaesthetist also recognises that aspects of development associated with being assigned male at birth may remain clinically relevant.
A transgender man’s identity as a man can similarly be respected while recognising that, if he retains a uterus and ovaries, pregnancy may remain physiologically possible.
Neither observation invalidates the patient’s identity.
They answer different questions.
One concerns how the individual lives and should be addressed.
The other concerns anatomy, physiology and clinical risk.
Conclusion: Anaesthesia Requires Reality, Precision and Respect
Anaesthesia is an unusually unforgiving area of medicine.
Once consciousness has been removed, the anaesthetic team assumes responsibility for oxygenation, ventilation, circulation and physiological stability. When airway difficulty occurs, there may be minutes—or occasionally seconds—in which to solve the problem.
There is therefore little room for ambiguity in clinically relevant information.
Sex at birth can matter.
Gender identity can matter.
Current anatomy matters.
Previous gender-affirming surgery can matter enormously.
Hormonal treatment can matter.
And the individual airway assessment matters more than assumptions based upon any one of those categories.
The appropriate response is therefore neither to disregard gender identity nor to pretend that identity replaces biological information.
It is to record both, and then go further.
Modern peri-operative care should be capable of respecting how a patient identifies while simultaneously documenting the biological, anatomical, surgical and pharmacological information necessary to keep that patient safe.
Indeed, this is essentially the principle embodied in current Association of Anaesthetists guidance: respect the patient’s preferred name and pronouns, provide a private mechanism for disclosure of sex at birth and gender, and establish relevant medical and surgical gender-affirming history during pre-operative assessment. (Association of Anaesthetists)
That is not a contradiction.
It is good anaesthesia.
Inclusivity should determine how we treat the person. Anatomy and physiology must continue to inform how we treat the patient.
