This article highlights three epistemic practices, which, taken together, create conditions that worsen the problem of ‘bisexual erasure.’ Though bisexual people constitute a significant portion of the larger LGBTQ+ community, their identities and experiences and routinely erased — in queer communities and broader society alike. This article argues that we have both an epistemic and a moral obligation to attend to the epistemic conditions created for bisexual people, and to work to make those conditions more just. Specifically, I highlight the detrimental influence of testimonial injustice, testimonial smothering, and epistemic microaggressions on bisexual people's ability to challenge and resist their own erasure.