In this essay, I argue that the way American bioethics has traditionally conceived of the distinction between public and private has given rise to some ethically problematic blind spots in its analyses to date. Furthermore, I argue that bioethics's view of the public and private spheres has reinforced a shortsighted view of bioethics's analytical sphere of influence. In particular, it has led bioethics to conceptualize issues largely from the perspective of health professionals, eschewing analyses of the problems of health and health information that patients and their intimates face outside of professional relationships and traditional health-care settings. It has also led some bioethical analyses to reflect, and to some degree reinforce, relationships of power that they might instead challenge.