Homosexuality: definition, identity, history, and social context

Identity and terminology

People use a variety of labels to describe their identities depending on gender, culture, and personal preference. Common English-language categories include:

• Gay — often used by men who are attracted to men and also used more broadly by some communities.
• Lesbian — typically applied to women attracted to women; see lesbian for cultural and historical perspectives.
• Bisexual — used by people attracted to more than one gender; further information at bisexual.

These identities exist on a spectrum and may overlap with other dimensions of identity such as gender. For example, a person who is transgender might identify as gay, lesbian, bisexual, or heterosexual with reference to their gender identity rather than their sex assigned at birth.

History and cultural perspectives

Attitudes toward same-sex relationships and identities have varied widely across time and places. Historical records show forms of same-sex relationships in many ancient societies, but the meanings and social roles attached to those behaviors often differ from contemporary concepts of sexual orientation. The modern notion of a relatively stable sexual orientation developed in the 19th and 20th centuries alongside changes in medicine, psychology, law, and social thought. In recent decades, many societies have seen increasing legal recognition and social acceptance, though elsewhere negative attitudes and legal restrictions continue to affect people's lives.

Social, legal, and health aspects

Issues commonly associated with homosexuality include legal recognition of partnerships, protection from discrimination, access to appropriate health care, and protection of civil rights. Major professional health organizations regard homosexuality as a normal variant of human sexuality and oppose practices that attempt to change a person's sexual orientation. Public health discussions also emphasize inclusive sexual health services and mental health support for people facing stigma or discrimination.

Prevalence and research

Estimating how many people identify as homosexual depends on survey methods, cultural context, and how questions are asked. Studies report a range of figures for attraction, behavior, and identity, and comparisons between studies should be made cautiously. Research on sexual orientation covers biological, psychological, and social factors, but no single cause determines orientation; most experts view sexual orientation as the result of complex interactions of factors.

Nonhuman occurrence and distinctions

Same-sex sexual behavior and pair bonds have been documented in many nonhuman species, indicating that such behavior occurs across the animal kingdom. It is important to distinguish sexual orientation from gender identity: orientation refers to who someone is attracted to, while gender identity refers to a person’s internal sense of being male, female, a blend of both, or neither.

Common misconceptions

1. Homosexuality is not a mental illness; medical and psychological associations consider it a normal variation of human sexuality.
2. Sexual orientation is not a choice in the sense of a simple, voluntary preference; many people describe orientation as an enduring part of who they are.
3. Language and labels change across cultures and time; how people describe themselves may vary by generation and community.

Rights, advocacy, and community

Many individuals and organizations advocate for the rights and well-being of gay, lesbian, and bisexual people as part of broader movements. The acronym LGBT (Lesbian, Gay, Bisexual, Transgender) is commonly used to describe a diverse community and allied movement that works on legal equality, anti-discrimination protections, health access, and social acceptance. Local contexts shape priorities and strategies: some groups focus on legal recognition of relationships, others on protection from violence and workplace discrimination, and others on culturally specific supports.

For introductory resources on concepts and terminology, refer to reputable organizations and educational materials that discuss sexual health, human rights, and social policy (sexual orientation, romantic attraction, sexual attraction, same gender, lesbian, bisexual, transgender, LGBT).