Some studies suggest lesbian, gay, and bisexual (LGB) teens are at higher risk than peers for violence at home, in school, and in the community. That can bring them into the child welfare system or services for runaway and homeless teens. This study compared self-reported experiences of sexual and physical abuse based on sexual orientation and gender in seven population-based surveys of youth. The authors used c[squared] and age-adjusted odds of abuse to compare bisexual to heterosexual, mostly heterosexual, and gay and lesbian students. They also provide case studies to illustrate the experiences of such youth. (Contains 3 tables.)