Gender identity

Gender identity is your internal sense of your own gender — whether you feel male, female, non-binary, or something else. It's about what feels right to you on the inside, not about your body, what you wear, or how you behave. For most people, their gender identity matches the sex they were assigned at birth. For some, it doesn't.

• Gender identity is how you experience your own gender internally.
• It's separate from biological sex (your body), sexual orientation (who you're attracted to), and gender expression (how you present yourself).
• Most people are cisgender — their gender identity matches their assigned sex.
• Some people are transgender — their gender identity doesn't match their assigned sex.
• Some people are non-binary — they don't identify fully as male or female.

Gender identity vs sex vs expression

These three things are related but different:

• Sex (sometimes called "biological sex" or "sex assigned at birth") is about your body — chromosomes, hormones, and reproductive anatomy. At birth, a doctor looks at a baby's genitals and assigns "male" or "female."
• Gender identity is about your brain — your internal sense of who you are. For most people this matches their assigned sex. For trans and non-binary people, it doesn't.
• Gender expression is about how you present yourself — clothes, hair, behaviour, mannerisms. This is separate from identity. A cis boy who wears makeup is still a cis boy if that's how he identifies. A trans girl who hasn't socially transitioned yet is still a girl.

Why it matters

Gender identity matters because it's a fundamental part of who someone is. When your gender identity matches how the world sees you, you probably don't think about it much — it just fits. When it doesn't match, it can cause real distress. That mismatch — feeling that the gender you were assigned doesn't fit who you are — is sometimes called gender dysphoria.

For young people, gender identity can come with a lot of questions. Am I definitely a boy? Am I definitely a girl? What if I'm not sure? What if I don't feel like either? All of these questions are normal. Some people have a clear, strong sense of their gender from early childhood. Others figure it out during puberty, or later. There's no single right timeline.

The spectrum

Gender isn't just two options. While most people identify as male or female, some people are non-binary (not fully male or female), genderfluid (their gender shifts), agender (they don't feel they have a gender), or use other terms that fit their experience. These identities are part of a spectrum, and they're all valid — even if they're less familiar.

Things people get wrong

"Gender identity is the same as sexual orientation." They're completely different things. Gender identity is about who you are. Sexual orientation is about who you're attracted to. A trans woman who's attracted to men is straight. A trans man who's attracted to men is gay. They're separate.

"It's just a phase." For some young people, questioning gender is a period of exploration that settles. For others, it's the beginning of understanding who they've always been. Either way, dismissing it as "just a phase" is unhelpful and can be hurtful.

"You have to change your body to have a different gender identity." You don't. Some trans people choose medical transition (hormones, surgery). Many don't. Gender identity is about who you are, not what medical steps you've taken.

Things people ask about gender identity

How do I know what my gender identity is?

Most people just know — it's a feeling, not a logical process. If you feel comfortable with the gender you were assigned at birth, you're probably cis. If something feels off, or you find yourself wishing you were a different gender, that's worth exploring. There's no rush to put a label on it.

What if I'm not sure?

That's completely okay. Questioning is normal and doesn't require an immediate answer. You can try things out — different pronouns, different names, different ways of presenting yourself — to see what feels right. Some people find it helpful to talk to someone, like a counsellor or an LGBTQ+ support service.

Is gender identity protected by law?

Yes. Gender reassignment is a protected characteristic under the Equality Act 2010 in the UK. This means it's illegal to discriminate against someone because of their gender identity. [CHECK: current legal position on non-binary inclusion]

Where to get help

• Mermaids — support for gender-diverse children, young people, and their families.
• Switchboard (0800 0119 100) — LGBTQ+ helpline for anyone wanting to talk about gender or sexuality.
• Childline (0800 1111) — confidential support for under-19s, including about gender identity and questioning.

Gender identity is your inner sense of whether you're a boy, a girl, both, or neither. It's about how you feel inside, not about your body or what you wear.

When a baby is born, a doctor looks at the body and says "it's a boy" or "it's a girl." For most people, that matches how they feel as they grow up. These people are called cisgender. For some people, it doesn't match. These people might be transgender — meaning they feel like a different gender from what they were called at birth. Some people don't feel fully like a boy or a girl. They might call themselves non-binary.

Gender identity is different from who you fancy. Who you are is one thing. Who you're attracted to is a separate thing.

Gender identity is also different from how you dress or act. A boy who likes makeup is still a boy if that's how he feels. A girl who hates dresses is still a girl if that's how she feels.

Some people know their gender from a very young age. Others figure it out during puberty or later. Some people aren't sure for a while, and that's okay. You don't have to have it all figured out straight away.

In the UK, it's against the law to treat someone unfairly because of their gender identity.