| Background Previous studies on the subgroup of non-suicidal self-injury (NSSI) in adolescents have mainly focused on community and school adolescents, with limited research on clinical samples, and identifying which type of NSSI it belongs to is highly meaningful for optimizing the allocation of medical resources. Objective Exploring the subtypes of NSSI in clinical adolescents, providing theoretical support for future intervention studies on adolescents with NSSI in China. Method From May , 2021 to April , 2022 , 192 adolescents who met the diagnostic criteria for NSSI according to the Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5) were selected from psychiatric or psychological outpatient clinics in six hospitals in Fujian Province. The measurement was conducted using a self-designed questionnaire, Adolescent Non-suicidal Self-injury Assessment Questionnaire (ANSAQ), Childhood Trauma Questionnaire(CTQ), Depression Anxiety Stress Scale (DASS-21), Difficulties in Emotion Regulation Scale(DERS). Latent profile analysis was performed using Mplus 8.0. Result The clinical adolescents with NSSI could be divided into three categories, namely "group with mild NSSI (50 people, 26.04%)", "group with emotional dysregulation (81 people, 42.19%)", and "group with severe NSSI (61 people, 31.77%)".The scores of childhood trauma questionnaire, anxiety depression stress scale, and emotion regulation scale in the severe self injury group were higher than those in the mild self injury group and emotion disorder group, and the differences were statistically significant (F=8.058, 51.414, 48.742, P<0.01). The scores of childhood trauma questionnaire, anxiety depression stress scale, and emotion regulation difficulty scale in the emotion disorder group were higher than those in the mild self injury group, and the differences were statistically significant (F=51.414、48.742，P均<0.01). Conclusion There are three potential profiles of NSSI among clinical adolescents, namely group with mild NSSI, group with emotional dysregulation , and group with severe NSSI. |