The objective of this study is to synthesize information from existing literatures on measures of the self-concept among institutionalized and non-institutionalized adolescents with respect to self-mutilation. As for an adolescent is concerned, it is important to develop a positive self-concept and high self-esteem in order to enhance a healthier personality. So the main objectives and focus of this study is to monitor the self-worth of adolescent students and help improve one’s self-concept and thus to develop a sense of healthy personality as an autonomous individual. 985 adolescent students, Kerala, India formed the sample for the study. The Self-Concept Questionnaire ((Kagen, Moore, & Bredekamp, 1995)) and Self-Harm Inventory (Randy A. Sansone, and Lori A. Sansone1998), were used. 2x2x2 factorial ANOVA, Regression Analysis and Correlation technique were used to analyse the data. The findings showed that the levels of self-concept seem to influence the levels of self-mutilating behaviour among the adolescent students.