Terminology of transgender anatomy

The terminology of transgender anatomy concerns the words used to describe sex-related and reproductive structures in people whose gender identity differs from the sex assigned at birth.

It is both a linguistic and a clinical topic, because the same structure may be named differently in textbooks, in medical records and by patients themselves.

The field sits at the intersection of anatomy, endocrinology, surgery, psychiatry and patient-centred care, and no single vocabulary is accepted by everyone.

Background

• Transgender is an umbrella term for people whose gender identity differs from the sex they were assigned at birth.
• Nonbinary describes gender identities outside a strict male-female binary, and some nonbinary people also identify as transgender.
• Transfeminine and transmasculine describe directions of transition rather than fixed anatomical states.
• Cisgender describes people whose gender identity matches the sex assigned at birth, and it is used as a comparison term rather than an insult.
• Assigned sex at birth is based on external genital appearance, and it may not match internal anatomy, chromosomes or later gender identity.
• Because anatomy textbooks traditionally describe only typical cisgender bodies, transgender anatomy is often taught as an exception or not at all.

Anatomical terms

• Standard anatomical names such as uterus, ovary, testis, prostate, penis and vagina remain in use in clinical contexts, even when they do not match a patient's gender identity.
• Some patients prefer gender-neutral terms such as chest for the breast region or front hole for the vagina, and clinicians are encouraged to ask which terms a patient uses.
• Community terms are not always precise anatomical descriptors, so a clinical history should confirm the structure being discussed.
• Terms such as male and female can refer to sex, gender or karyotype, and ambiguity arises when the intended sense is not stated.
• Some clinical guidelines recommend using anatomical terms with a qualifier, such as "cervix, if present", rather than assuming a structure exists.
• The word "biological sex" is contested because it suggests a single biological truth, whereas sex traits are multiple and can be discordant.
• Intersex people add further complexity, because their anatomy may not fit either typical male or typical female descriptions.

Clinical relevance

• Gender-affirming hormone therapy changes breast tissue, fat distribution, muscle mass and genital tissue, and these changes affect physical examination and imaging.
• Gender-affirming surgery can remove, reconstruct or reroute structures, so postoperative anatomy may differ substantially from textbook descriptions.
• Transmasculine people who retain a cervix still need cervical screening, and transmasculine people with breast tissue may still need breast screening.
• Transfeminine people may retain a prostate, and prostate cancer screening remains relevant after vaginoplasty.
• Pregnancy is possible for some transgender men and nonbinary people who retain a uterus and ovaries, and obstetric care must accommodate their anatomy and identity.
• Hormone therapy can affect bone density, cardiovascular risk and liver function, and monitoring is part of clinical care.
• Dysphoria can make pelvic examination distressing, so clinicians should explain each step and offer alternatives where possible.

Education and language

• Medical education increasingly includes transgender health, but coverage varies widely between schools and countries.
• Teaching anatomy with only cisgender bodies can leave students unprepared for transgender patients and for variations of sex development.
• Inclusive language does not require abandoning standard terms, but it does require asking patients which words they use and explaining why a term is needed.
• Some educators use case-based teaching to show how the same structure can be described in different vocabularies without losing accuracy.
• Language is constantly changing, and terms that are preferred today may be rejected later, so clinicians should follow patient preference rather than a fixed list.

History

• Transgender medicine became a recognised field in the twentieth century, and its terminology has changed with each edition of diagnostic manuals.
• The World Professional Association for Transgender Health published standards of care that include guidance on respectful language.
• The change from "gender identity disorder" to "gender dysphoria" in DSM-5 reflected a shift from pathology to distress as the clinical focus.
• ICD-11 moved transgender-related diagnoses out of mental disorders and into a chapter on sexual health.
• Community advocacy has driven much of the change in terminology, often ahead of official medical bodies.

Research and controversies

• There is no consensus on a single terminology, and different stakeholders prioritise accuracy, respect, simplicity or legal recognition.
• Some clinicians argue that standard anatomical terms are necessary for clear communication, while others argue that they can be experienced as misgendering.
• Research on terminology use is limited by small samples and by differences in survey methods, so prevalence estimates should be read cautiously.
• The ethics of collecting sex and gender data in research are debated, because categories can erase nonbinary and intersex people.
• Terminology is likely to remain plural, and the practical solution is to document the terms a patient uses and to use them consistently.

• Clinical records should use the patient's chosen name and pronouns, because misgendering in a record can harm trust and future care.
• Legal documents may carry a sex marker that differs from the patient's identity, and clinicians should not assume the marker describes anatomy.
• Pelvic and genital examinations require explicit consent, an explanation of each step and the option to stop at any time.
• Hormone therapy changes skin thickness, hair growth and sebaceous activity, which can alter dermatological findings.
• Voice therapy and laryngeal surgery address pitch and resonance, and they require knowledge of laryngeal anatomy and vocal fold behaviour.
• Fertility preservation should be discussed before hormone therapy or surgery, because gamete production may be affected.
• Adolescent care adds questions about pubertal suppression and consent, and the evidence base is still evolving.
• Research instruments that ask only for male or female miss nonbinary and intersex participants, which limits generalisability.

• Electronic health records often lack structured fields for chosen name, pronouns and organ inventory, which forces clinicians to record them in free text.
• Standardising organ inventory fields would improve cancer screening reminders for transgender patients without assuming a particular anatomy.