Bisexuality: definition, variations, history, and social context

What bisexuality commonly means

People describe bisexuality in different ways. Some emphasize attraction to both men and women; others describe attraction to more than one gender, including non-binary people. The orientation can refer to romantic feelings, sexual desire, or both. For distinctions between romantic and sexual attraction, see romantic attraction and sexual attraction. To reflect attraction beyond the gender binary, many discussions link bisexuality to the idea of being attracted to more than one gender.

Variations, fluidity and related identities

Bisexuality is not a single, uniform experience. Some bisexual people express roughly equal attraction across genders; others have stronger preferences for particular genders. Sexual orientation can be fluid for some individuals. Because terms overlap in everyday use, people sometimes compare or contrast bisexuality with other identities. For example, distinctions are often made between bisexuality and pansexuality, and discussions about gendered attraction connect to concepts of gender identity. The Kinsey scale, introduced by Alfred Kinsey, is one historical model that treated sexual orientation as a continuum rather than a set of discrete categories; see also the idea of a sexual continuum.

Common misconceptions and social issues

• Misconception: bisexual people are confused or indecisive. Reality: bisexuality is a valid orientation and can be a stable identity.
• Misconception: bisexual people are always attracted to cisgender men and women only. Reality: many bisexual people are attracted to multiple genders and this varies by person.
• Reality: bisexual people often face specific stigma, including biphobia and bisexual erasure within wider communities, which can affect mental health and access to resources; many resources and community organizations address these issues within the broader LGBT context.

History and cultural recognition

Language and public awareness about bisexuality have evolved over time. Modern scientific and social conversations about same-sex and multi-gender attraction gained visibility in the 20th century, including through work like Kinsey's research and later LGBT rights movements. As public discourse expanded, communities developed symbols, advocacy groups and designated observances to increase visibility and support. For historical context, see resources about Kinsey and the broader continuum approach.

Biological usage of the term

Outside human sexuality, "bisexual" can have a biological meaning. In biology, the word sometimes describes organisms that possess both male and female reproductive structures or bear reproductive organs of both sexes — a concept that appears in botany and zoology. In that context consult materials on biology, the definition of organisms with mixed sexual structures, and terms related to having both male and female organs (hermaphroditic traits).

Why it matters

Understanding bisexuality matters for personal identity, public health, and social inclusion. Clear, respectful language helps reduce stigma and supports accurate research on well-being, relationships, and community needs. For people seeking more information or community connection, official guides and advocacy organizations offer education, counseling and visibility initiatives; many of these resources are linked in overview materials such as introductory pages and community hubs within the larger LGBT ecosystem.

Further reading and support can be found through community centers, peer-led groups and educational sites listed by advocacy organizations; if you want specific resources, consult reputable local or national groups or the entries linked above.