A person's internal and self-described sense of gender, such as woman, man, non-binary, another gender or no gender. It may or may not correspond with sex registered or assigned at birth.
Sources and evidence type
Manual claim and limitation notes are shown where an individual source audit is complete. Other evidence-type labels are a publisher aid awaiting source-by-source confirmation.
NHS digital service manual: sex, gender and sexualityClinical guideline
Source design
Current public-health or clinical guidance
What it can support
Service pathways, health definitions and recommended public-health or clinical actions within its stated scope.
Important limitation
General guidance cannot assess an individual’s symptoms, exposure, medicine, contraindications or urgency.
Illustration created using generative AI; not documentary evidence.
In brief
A self-described sense of gender, distinct from expression, anatomy and orientation.
Gender identity is stated by the person rather than inferred from appearance, anatomy, voice, name or documents. It is distinct from gender expression and sexual orientation. Some people have a stable identity, some experience fluidity, and some do not find gender personally significant.
Self-identification and language
Names, pronouns and identity terms are communicated by the person. Pronouns can provide useful information but do not always map one-to-one onto gender.
Language changes across cultures and time. Ask respectfully when relevant rather than testing or demanding a justification.
Status
Detailed editorial draft
Publisher
The UK Kink Guide
Reviewed
Structured draft present; individual review date not recorded
Evidence
3 cited sources · types labelled below
Jurisdiction
UK-focused general education
Read the rest: evidence, law, safety and sources
Gender identity
How a person understands and names their own gender.
Sex registered at birth
The sex category recorded at birth, based on observed characteristics and administrative practice.
Gender expression
Outward presentation through clothing, voice, manner or other signals.
Sexual orientation
A pattern of sexual attraction or identity, separate from one's own gender.
Cis, trans and diverse identities
Cisgender commonly means gender aligns with sex assigned at birth; transgender describes a difference, often as an umbrella. Non-binary includes identities not exclusively woman or man.
Not everyone adopts these umbrellas, and legal or clinical categories may use narrower definitions than everyday community language.
Healthcare relevance and privacy
Good care asks for the specific anatomy, medicines, reproductive history or screening information needed, rather than using identity as a proxy. A trans status should not dominate unrelated care.
Recording identity or pronouns can support respectful care but may reveal sensitive information. Explain purpose, access and confidentiality and allow people not to answer.
Distress is not identity
Gender incongruence describes a difference between experienced gender and registered sex; gender dysphoria refers to associated distress or discomfort and is not universal.
A person need not experience dysphoria, transition medically or obtain documents for their identity to deserve respect. Mental-health support should address distress without treating identity itself as a disorder.
Non-graphic examples
What the umbrella may include
Stating a non-binary gender identity.
Using pronouns that do not reveal anatomy.
Being cisgender with gender-nonconforming expression.
Providing anatomy-specific information privately for screening.
Declining to record gender identity when it is irrelevant.
Prepare for an appointment
Questions you could ask a professional
What information would help you understand my question?
What are the realistic options and uncertainties?
How can disability, communication or privacy needs be accommodated?
When should the situation be reviewed again?
These prompts do not replace assessment and do not imply that every reader needs professional care.
Continue learning
Take the next step from definition to context.
Continue with independent guidance connecting gender identity to evidence, consent, safety, uncertainty and practical decisions.
The UK Kink GuideEvidence-led glossary