研究發現，雙性戀者普遍面臨來自主流社會與同性戀社群的雙重排斥與污名。為更進一步分析雙性戀者在同志社群中的互動位置，本文建構出雙性戀身分認同的四種類型，包括「雙同兼具」、「雙強同弱」、「同強雙弱」與「模糊游移型」，以呈現不同雙性戀行動者在兩個參照群體間的劃界策略。整體而言，本研究將雙性戀認同歷程可視為一個社會類屬的劃界過程，雙性戀者在日常生活中大多數都採取「低濃度、低可見性」的身分實作，依據情境調整可見性強度與持續時間，展現身分的彈性與行動能動性，並指出雙性戀認同是一種關係式的分類實作。
Findings reveal that bisexuals commonly face dual stigma and marginalization from both dominant heterosexual society and gay/lesbian communities. To further analyze their positions within the LGBTQ+ community, this study develops four ideal types of bisexual identity—dual-strong, bi-strong/gay-weak, gay-strong/bi-weak, and ambiguous-shifting—to illustrate diverse strategies of boundary-making between reference groups.Overall, this study conceptualizes bisexual identity formation as a process of boundary-making within systems of social categorization. In everyday life, bisexual individuals often engage in low-density and low-visibility identity practices, adjusting the intensity and duration of their visibility based on situational contexts. This flexible and agentive approach highlights bisexual identity as a relational classificatory practice.
