Human sexuality is a complex phenomenon involving the interaction of biologic gender, core gender identity and gender role behavior. Successful completion of normal stages of sexual development is important for children and adolescents to allow for an optimal adult life. Controversies arise for clinicians as they work with their pediatric patients regarding health care sexuality issues. It is important that clinicians help these patients in an unbiased and neutral manner. As adults, these children and adolescents will function in a number of sexuality roles, whether heterosexual, homosexual, or bisexual. In this book, the authors review many of these complex and critical issues that involve the fascinating development of human sexuality.