Drawing from an activist research project spanning Loja, Santo Domingo, New York, New Jersey, and Barcelona, this book offers a feminist intersectional analysis of the impact of migration on health and well-being. It assesses how social inequalities and migration and health policies, in Ecuador and destination countries, shape the experiences of migrants. The author also explores how individual and collective action challenges health, geopolitical, gender, sexual, ethnoracial, and economic disparities, and empowers communities. This is a thorough analysis of interpersonal, institutional, and structural mechanisms of marginalization and resistance. It will inform policy and research for better responses to migration’s negative effects on health, and progress towards greater equality and social justice.