Bigender, bi-gender or dual gender is a gender identity that includes any two gender identities and behaviors. Some bigender individuals express two distinct personas, which may be feminine, masculine, agender, androgyne, or other gender identities; others find that they identify as two genders simultaneously. A 1999 survey conducted by the San Francisco Department of Public Health observed that, among the transgender community, 3% of those who were assigned male at birth and 8% of those who were assigned female at birth identified as either "a transvestite, cross-dresser, drag queen, or a bigendered person".
Identifying as bigender is typically understood to mean that one identifies as both male and female or moves between masculine gender expression and feminine gender expression, having two distinct gender identities simultaneously or fluctuating between them. This is different from identifying as genderfluid, as those who identify as genderfluid may not go back and forth between any fixed gender identities and may experience an entire range or spectrum of identities over time.
- Clements, K. San Francisco Department of Public Health, 1999
- Roxie, Marilyn (2011-07-01). "How do you know if you're genderfluid or just bigender?". Genderqueer and Non-Binary Identities.
- Invisibilia - Paige's Story (audio interview)