Testicular Cancer explores the various forms of the disease, discusses its detection, diagnosis, and treatment, and gives an overview of current clinical and laboratory research. This relatively rare form of cancer is seen most often in young men in their late teens, 20s, and 30s. The disease, which once killed most patients, now has a survival rate greater than 90 percent, making it one of the success stories in the history of cancer treatment. Important historical research breakthroughs in the fight against testicular cancer are highlighted, as well as important questions and challenges facing scientists in the future.