Overview

Gender identity is usually defined as a person's inner sense of being a man, a woman, both or neither, which may or may not match their sex. Over the past two decades this idea has moved from a niche clinical term to a widely taught belief, written into school materials, medical guidelines and law. For many people who later detransitioned, it was also the idea that made transition feel necessary: if you have an inner gender that does not match your body, changing the body looks like the cure.

This hub examines that belief system as a whole: where the concept came from, the specific beliefs built on it, the main philosophical positions, and what detransitioners and trans people say gender identity means to them. Each belief has its own page, linked from the table below. Some pages are grouped: gender as an explanatory framework has sub-pages on born in the wrong body and egg cracking, and gender stereotypes has sub-pages on non-binary identities and gender non-conformity without labels.

Where the idea came from

From gender role to gender identity

The word "gender" was borrowed from grammar into psychology in the 1950s. The sexologist John Money and colleagues at Johns Hopkins used "gender role" in 1955 to describe everything a person says and does to show they are a boy or a girl, in the context of children born with differences of sex development (DSDs) (Money, Hampson & Hampson 1955, discussed in Green 2010). The psychiatrist Robert Stoller introduced "gender identity" to psychiatry in 1964 and developed it in Sex and Gender (1968), arguing that sex and gender are not inevitably bound together: "each may go in its quite independent way" (Green 2010).

Money believed gender identity was largely learned and could be set by upbringing. His most famous case, David Reimer, was a boy raised as a girl after a botched circumcision. Money reported the case as a success; in fact Reimer rejected the female identity in childhood and was living as a male by 15 (Diamond & Sigmundson 1997). The case is now cited on all sides, including as a warning about clinicians imposing a theory of gender on a child's body.

The feminist sex/gender distinction

Second-wave feminists adopted the distinction for a different purpose. If differences in behaviour between men and women are social ("gender") rather than biological ("sex"), then they can change. The anthropologist Gayle Rubin called for a "genderless (though not sexless) society" in which anatomy is irrelevant to what a person does or whom they love (Stanford Encyclopedia of Philosophy). On this view "gender" meant the stereotypes imposed on a sexed body, and the goal was to loosen them.

The shift to an inner, self-defined identity

Over time the meaning inverted. Instead of a set of social expectations to be challenged, "gender" came to mean an inner essence that each person has and that only they can know. The 2006 Yogyakarta Principles (a statement on sexual orientation and gender identity in international human rights law, drafted by a group of human rights experts) define gender identity as "each person's deeply felt internal and individual experience of gender, which may or may not correspond with the sex assigned at birth" (Yogyakarta Principles). Variations on this wording now appear in many laws and clinical guidelines (see sex vs gender in law).

This definition has three features that matter for everything else on this hub. It is inner (not visible in the body or behaviour), self-reported (no one else can confirm or dispute it) and sovereign (where it conflicts with sex, it is meant to take priority). The phrase "sex assigned at birth" also recasts sex, which is observed, as a label someone else imposed. This wiki does not use that framing.

The core beliefs at a glance

The pages under this hub each examine one belief that commonly travels with the idea of gender identity. The table summarises the claim, the main evidence or critique, and where to read more.

Three ways of thinking about gender

Arguments about gender identity draw on philosophical positions that are often left unstated. Each has serious defenders, and each is worth understanding on its own terms.

• Gender essentialism holds that each person has a fixed inner gender. The older, traditional version tied it to sex: women are naturally nurturing, men naturally aggressive. The modern gender identity version detaches the essence from the body: a person can be a woman inside regardless of their sex. Both versions share the idea of a gendered essence; they disagree only about where it lives.
• Social constructionism holds that masculinity and femininity are largely produced by culture. In Simone de Beauvoir's version the female body is given but the social role of "woman" is imposed. In the philosopher Judith Butler's more radical version gender is "performative", created by repeated acts rather than expressing anything underneath. Queer theory uses this to argue categories can be multiplied and changed.
• Materialist or sex-realist positions hold that "man" and "woman" refer to adult human males and females, defined by the reproductive system a body is organised around. Roles and personalities vary freely within each sex. Gender-critical feminists take this view, as do many biologists.

The gender stereotypes page notes that popular gender identity belief is often a hybrid of the first two. It treats gender roles as socially constructed when criticising them, then treats each person's gender identity as an innate essence to be discovered, and identifies that essence using the very roles it calls constructed. Many detransitioners describe noticing this contradiction as the point where the belief stopped making sense to them. The materialist view resolves it simply: sex is real, roles are optional, and no one needs a new category to be a masculine woman or a feminine man.

Feminist thinkers have argued over the relationship between sex and gender for more than half a century, and those debates shaped every view on this page. See feminism, sex and gender identity, especially second-wave feminism, queer theory and gender-critical feminism.

Gender as an explanatory framework

If gender identity cannot be observed directly, why does it feel so convincing to the people who hold it? One answer, explored in depth on gender as an explanatory framework, is that it works as a framework for explaining complex emotions. Depression, body hatred, sexual shame, trauma, social isolation and not fitting in are diffuse and hard to name. "I am trans" gathers them into one story with a clear cause and a clear solution.

When I first started identifying as trans, I felt anxiety, but also relief. I felt like I had a framework that explained the agony I was experiencing, and I was presented with a clear pathway (transitioning to male) to alleviate it. Believing my core essence or brain was truly male felt great, honestly. It made me feel like my suffering was tragic and interesting and way more sympathetic than the ugly pain of an abused girl. —mortalmath, desisted female

The research on detransitioners supports this pattern in their own retrospective accounts. In Littman's survey of 100 detransitioners, 38% said their gender dysphoria had been caused by something specific such as trauma or a mental health condition (Littman 2021). In Vandenbussche's survey, 70% said they had realised their dysphoria was related to other issues (Vandenbussche 2022). In a 2024 survey of 78 young adults who had stopped identifying as trans, the most common reason given for their original trans identification was confusing mental health problems or trauma reactions with gender dysphoria (Littman et al. 2024). These are self-selected samples, and they describe people who left the identity, not everyone who holds it.

Among ~3,100 r/detrans stories analysed by detrans.ai, 44% described escapism as contributing to their transition and 28% described internalised misogyny or misandry (n = 3,094; AI-extracted from self-selected public posts, so not representative of everyone who transitions) (detrans.ai stats). This is how a belief in gender identity can be both sincere and mistaken: the distress is real, but the explanation attached to it may not be. For the conditions most often involved, see causes and correlates.

Competing models and cross-cultural claims

The idea that all gender distress reflects a single inner identity is not the only model. Ray Blanchard's typology proposed two distinct routes to male transition: one in same-sex attracted males who were feminine from childhood (his "homosexual transsexuals", abbreviated HSTS), and one linked to autogynephilia, a male erotic interest in the idea of oneself as a woman. The Blanchard typology page concludes that it describes real patterns but goes beyond the evidence when it claims these are the only two types, and that it does not predict who will detransition. Its sub-pages cover HSTS, autoandrophilia, meta-attraction and the "true trans" debate.

Third-gender cultures are often cited as proof that gender identity is universal. The third gender cultures page argues the opposite. Categories such as Samoan fa'afafine, Indian hijras and Thai kathoey are mostly for feminine males, often defined by sexual role and social function, and none of them forget sex. Iran shows something darker: where homosexuality is criminalised, sex reassignment can become a coercive "solution" for gay men and lesbians. Thailand shows that a society can tolerate feminine men without requiring medical transition.

Both topics suggest that what gets called "gender identity" may describe several different things: same-sex attraction in a homophobic setting, gender non-conformity in a rigid one, erotic interests, or distress with other roots.

What detransitioners say about gender identity

Detransitioners hold a range of views, and the r/detrans community is not a single voice. But a recurring theme in their accounts is that leaving a trans identity meant giving up the concept of gender identity itself, not just swapping one identity for another.

"What does it feel like to be a woman?"

A common starting point is noticing that the central claim, "I feel like a woman" or "I feel like a man", is hard to give any content.

Most of the time it's explained as "gender identity is what gender you feel like." Ok. So what does it mean to "feel like" a woman then? What feeling is that? What feelings are only women allowed to have, but not men? —novaskyd, desisted female

I am a man but I have no idea what a "man innate feeling" is. I'm simply an adult human of the male sex, and the English language calls that "man". —francis2395, desisted male

If no feeling belongs only to women or only to men, then a feeling cannot make someone a woman or a man. What is left, many conclude, is either a stereotype or a wish.

What detransitioners report about the belief's harms

Some describe the belief as actively harmful because it reads any distress about one's sex as confirmation:

This is the problem with gender ideology in my opinion. Any shred of trauma or distance associated with your sex is seen as a verification that you are somehow trans. It's so dangerous. —cinder_garden, detrans female

Others compare it to a religious belief that raises the stakes of doubt:

It really helped me to think of "gender identity" is to transgender as "soul" is to Christianity. It's a token, part of a belief system, given to you. To make you feel unique and cared for but also to attach and make you dependent on the belief system. It sets the stakes, if you don't work to save it or reflect on it constantly you are in danger of losing your authentic self. —Rare_Treat_5098, detrans male

The comparison connects to wider concerns about echo chambers and cult-like dynamics in some online communities.

The relief of letting go

For many, accepting sex as a plain fact rather than an identity to be achieved brought relief:

Being a woman then became something that I didn't have to identify as. There was nothing i, or anyone else, had to do to be a woman. I was born female and I grew to adulthood and that is the sole requirement. I was able to step out of all the gender rhetoric and going back and forth in circles constantly trying to define myself and just getting more and more obsessed with myself and enshrining my feelings as holy writ. —Space-A1ien, detrans female

Not everyone lands in the same place

Letting go does not look the same for everyone. Some men describe accepting a feminine personality in a male body rather than rejecting the idea of a gendered brain:

I realized that my body and brain dont have to "match." I realized that I am supposed to be the way I am, and my body is not defective or wrong just because I dont fit society's definition of what a man should be. —FarOutFighter, detrans male

Others say the identity was not wrong so much as not fixed: "I figured out that my gender identity isn't set in stone" (Shiro_L, detrans male). Some continue to believe gender dysphoria is real while rejecting an innate trans identity. What these accounts share is that the body stopped being treated as the problem.

How some trans people describe gender identity

Trans people also describe gender identity in very different ways, and their accounts deserve to be heard accurately. Some describe it as an inner sense close to the Yogyakarta definition:

To me, being a man (and gender identity as a whole) feels more spiritual than biological. … It's more of a feeling in your bones drawing you to what makes you feel more comfortable- a silent voice telling you who you should really be. —faerie_wheelz666, trans man (FTM)

Others answer the "it's just sexism" objection directly, saying the feeling persists even where sexism is absent:

I STILL identify as a man even in places that are very equal and safe for women and men. … Even without sexism, I still actively feel like a man and want to be a man. —ftmaggot, trans man (FTM)

Strikingly, some trans people agree with detransitioners that there is no inner "feeling like a woman". One trans woman wrote, "There's no 'Feel like a woman.' It took me about 9 months of total war with myself to realize that," describing her identity instead as "a million tiny shoves" towards what made her happier (Biospark08, trans woman (MTF)). Another described gender as "a social construct" made up of how a person identifies, presents and is treated (AuctrixFortunae, trans woman (MTF)).

So "gender identity" is not one shared belief even among trans people: some describe an innate essence, some a persistent desire, some a social role chosen for happiness. A persistent feeling is real, but persistence alone cannot show its cause, and many detransitioners report feelings that seemed permanent until they changed. This wiki does not question trans-identified adults who are content with their lives. Its concern is with treating an unmeasurable inner state as sufficient grounds for irreversible medical steps, especially in young people, where national reviews have found the evidence for medical intervention to be weak (Cass 2024). See evidence reviews and informed consent.

Living without the belief

The alternative this wiki returns to is simple. Sex is real and does not need to be identified with or achieved. Personality, interests, clothing and mannerisms belong to the individual, not to a sex. A masculine woman is a woman; a feminine man is a man; neither needs a new label. The gender non-conformity without labels page celebrates exactly this.

For people questioning their gender, this does not mean their distress is imaginary. It means the distress deserves careful exploration of trauma, sexuality, mental health and stereotypes before any conclusion is drawn, ideally with a gender-exploratory therapist. For those who have already transitioned and now have doubts, healing and recovery describes how others have rebuilt their lives, and the support directory lists therapists and peer groups. More first-hand accounts are in the video archive, and the research is in the study archive.

References

• Money, J., Hampson, J. G. & Hampson, J. L. (1955). Hermaphroditism: Recommendations concerning assignment of sex, change of sex and psychologic management. Bulletin of the Johns Hopkins Hospital (as cited in Green 2010).
• Green, R. (2010). Robert Stoller's Sex and Gender: 40 Years On. Archives of Sexual Behavior. source.
• Diamond, M. & Sigmundson, H. K. (1997). Sex Reassignment at Birth: Long-Term Review and Clinical Implications. Archives of Pediatrics & Adolescent Medicine, 151(3), 298–304. PubMed.
• Stanford Encyclopedia of Philosophy. Feminist Perspectives on Sex and Gender. source.
• Yogyakarta Principles (2006). Introduction to the Yogyakarta Principles. source.
• Singh, D., Bradley, S. J. & Zucker, K. J. (2021). A Follow-Up Study of Boys With Gender Identity Disorder. study page.
• Littman, L. (2021). Individuals Treated for Gender Dysphoria with Medical and/or Surgical Transition Who Subsequently Detransitioned: A Survey of 100 Detransitioners. study page.
• Vandenbussche, E. (2022). Detransition-Related Needs and Support: A Cross-Sectional Online Survey. study page.
• Littman, L., O'Malley, S., Kerschner, H. & Bailey, J. M. (2024). Detransition and Desistance Among Previously Trans-Identified Young Adults. study page.
• Cass, H. (2024). Independent review of gender identity services for children and young people: Final report. study page.
• detrans.ai (2026). Detransition statistics from /r/detrans stories. stats page.