In modern pediatric practice, gender matters. From the pink-and-blue striped receiving blankets used to swaddle newborns, to the development of sex-specific nutrition plans based on societal expectations of the stature of children, a gendered culture permeates pediatrics and children’s health throughout the twentieth and early twenty-first centuries. This book provides a look at how gender has served as one of the frameworks for pediatric care in the U.S. since the specialty’s inception. Pink and Blue deploys gender—often in concert with class and race—as the central critical lens for understanding the function of pediatrics as a cultural and social project in modern U.S. history.