In this paper, I attend to a current strand in bioethics that forwards solidarity as a promising direction for bioethics theory and health-promoting practices. Drawing on resources from social and political philosophy, I argue that we can gain useful insight in bioethics if we understand solidarity as a political relation grounded not on shared social location but rather on shared visions for the sorts of worlds in which collective health and dignity proliferate. I consider what traction this conception of solidarity (...) might give for thinking about social justice issues in the context of political movements for “reproductive justice.”. (shrink)