In placing health at the center of political and social change, this book weaves the Gulf and Arabian Peninsula into global circulations of commodities and movements of people. As a collection of institutions and infrastructures, pursuits of health created shifting boundaries of rule between imperial officials, indigenous elites, and local populations. As a set of practices seeking to manipulate the natural world, health policies compelled scientists and administrators to categorize fluid populations and ambiguous territorialities. And, as a discourse, health facilitated notions of racial difference, opposing native uncleanliness to white purity and hygiene, and indigenous medicine to modern science. Disorder and Diagnosis examines how Gulf residents, through their engagements with health, fiercely contested and actively shaped state and societal interactions.