Results indicated that participants experienced feelings of shame and guilt rarely. Even when questioned soon after the beginning of their prison term only 13.71 percent and 48.16 percent of the inmates stated that they frequently felt shame and guilt, respectively, despite the social stigma that is imposed on young men by a prison sentence. Feelings of shame and guilt decreased rapidly during the first weeks of imprisonment, and continued to decrease during the course of imprisonment. Juvenile inmates quickly take on the normative attitudes of the prisoner subculture in which feelings of shame and guilt are hardly socially desired, and might even be regarded as a weakness. Overall shame and guilt occurred independently from other demographic, individual, and social factors underlying the importance of both variables as independent psychological constructs. Both shame and guilt have quite a high rate of unexplained variance; therefore, the causes of feeling shame and guilt remained unknown. Shame that results in higher rates of recidivism could be important in some countries or States where it is legal for the names/addresses of offenders, especially sexual offenders, to be made public, even after they've served their prison term. Finally, shame and guilt are just two traditions among several others that control the reduction of deviant behavior: situation, opportunities, social perception, needs, expectations and goals, and locus of control and habits are other factors that contribute to delinquent behavior. Future research should seek to find significant predictors for those two emotions and for their variations during the course of imprisonment. The data were obtained from 6 prisons in northern Germany participating in the ongoing Hanover Prison Study; the sample included 1,243 male German prisoners between the ages of 14 and 24 who were serving a custodial sentence for the first time. Limitations and future studies are detailed. Table, references