Due to the under-representation of females, public officials have paid less attention to understanding their offending or to developing and assessing prevention and intervention strategies for them. Attention to female offenders is now considered important because their numbers are growing in all spheres of criminal justice. This article explains what is currently known about girls and their juvenile justice experiences. It discusses the difficulty that exists in identifying gender bias because of the nature of juvenile justice processing. It then describes data sources about the offending patterns of girls and boys and examines how gender appears to affect juvenile justice processing. Following this, the article identifies difficulties for girls in access to treatment and services. It highlights deficiencies in knowledge about female-specific treatment. Finally, it gives recommendations for an integrated framework to assist in learning more about the problems girls face and ways to make their experiences with juvenile justice systems successful.