Latent Profiles of Nonsuicidal Self-Injury Functions and Severity Among Korean Adolescents: Associations With Social Exposure and Cognitive Functioning
This study of 384 Korean adolescents with nonsuicidal self-injury (NSSI) identified four distinct latent profiles based on function and severity, revealing that greater media exposure, specific interpersonal factors, and cognitive vulnerabilities like negative automatic thoughts significantly differentiate these groups.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
Adolescence is a time of intense emotional weather, where feelings can surge with a force that feels impossible to manage. For some teenagers, this internal storm leads to a behavior known as nonsuicidal self-injury. This is not an attempt to end one's life, but rather a deliberate act of hurting one's own body, such as cutting or burning, to cope with overwhelming pain. Scientists have long understood that this behavior serves different purposes for different people. For some, it is a way to quiet a chaotic mind or stop a feeling of numbness; for others, it is a way to reach out to friends or signal distress to the world. Furthermore, the behavior itself varies wildly in how often it happens and how severe the injuries are. Because these motivations and the intensity of the acts differ so much, researchers have begun to wonder if teenagers who hurt themselves are actually a single group, or if they fall into distinct categories that require different kinds of help.
A team of researchers in South Korea set out to map these differences among 384 adolescents who had engaged in self-injury within the last year. They did not simply ask how many times a teenager hurt themselves or why; instead, they looked at the whole picture, combining the reasons for the behavior with how severe it was. By analyzing the data from these teenagers, the researchers identified four distinct groups, or profiles, that revealed a surprising amount of variety in how young people experience and express this pain.
The first group, which made up about one-third of the participants, was characterized by low severity and a mix of low motivations. These teenagers engaged in self-injury less frequently and with less intensity than the others, and their reasons for doing so were not strongly tied to any single emotional need. In contrast, a second group, also comprising roughly one-third of the sample, stood out for the intensity of their internal struggle. These teenagers reported the highest levels of severity in their self-injury, and their primary motivation was to regulate their own emotions. They used the behavior to escape overwhelming negative feelings or to punish themselves, suggesting that their actions were driven almost entirely by an internal need to manage their own psychological state.
A third group, representing about 28 percent of the participants, showed a more balanced pattern. These teenagers engaged in self-injury with moderate frequency and severity, and their motivations were a mix of both internal needs and social desires. They did not lean heavily toward one extreme or the other, but rather displayed a diffuse pattern of reasons for their behavior. The final group was the smallest, making up only about 6 percent of the sample, yet it was the most distinct in its social focus. These teenagers showed moderate levels of self-injury severity, but their motivations were heavily oriented toward others. They were driven by a strong desire to belong, to communicate with peers, or to influence their social environment, distinguishing them sharply from the group driven by internal emotional regulation.
The researchers then looked at what factors might explain why a teenager fell into one of these specific groups. They found that exposure to self-injury through media was a powerful predictor. Teenagers who had seen more content related to self-injury on social media, in movies, or in music were significantly more likely to belong to any of the three more active groups compared to the low-severity group. This suggests that seeing these behaviors in the media might make them seem like a more accessible or understandable way to cope. Interpersonal exposure, or knowing friends who engage in self-injury, also played a role, but it distinguished specific groups rather than all of them. For instance, knowing peers who self-injured was more strongly linked to the group driven by internal emotional needs and the group driven by social belonging.
The study also examined the mental habits of these different groups, specifically looking at the thoughts that run through their minds and how they solve problems. The group with the lowest severity and lowest motivation showed the most adaptive thinking patterns. They reported having more positive automatic thoughts and were better at solving social problems. In stark contrast, the group driven by intense internal emotional needs showed the most difficult cognitive profile. They reported the highest levels of negative thoughts, such as feelings of hopelessness or a negative self-image, and they struggled the most with finding effective solutions to their problems. This suggests that the teenagers who hurt themselves the most severely and for internal reasons are also the ones carrying the heaviest cognitive burdens.
These findings challenge the idea that all teenagers who self-injure are the same. Instead, the research suggests that the behavior is a complex phenomenon with different faces. Some teenagers are driven by a desperate need to quiet their own internal storms, while others are motivated by a need to connect or communicate with their social world. The severity of the behavior is not just a matter of how much pain is inflicted, but is deeply tied to these underlying motivations and the cognitive and social environments in which the teenagers live. The study indicates that understanding why a teenager hurts themselves, and how severe the behavior is, is just as important as knowing that it is happening. This distinction matters because it implies that a single approach to treatment may not work for everyone. Those driven by internal emotional pain may need help learning to regulate their feelings and challenge negative thoughts, while those driven by social factors might benefit from interventions focused on communication and building healthy relationships.
The researchers noted that their study was a snapshot in time, so they could not prove that media exposure or specific thoughts caused the different profiles to form. They also excluded teenagers who had suicidal intent, meaning the findings apply specifically to those whose self-injury is not an attempt to end their lives. Despite these limitations, the study provides a clearer map of the landscape of adolescent self-injury. It shows that behind the behavior, there are distinct stories of emotional struggle, social connection, and cognitive patterns. By recognizing these different profiles, clinicians and caregivers can move beyond a one-size-fits-all approach and offer support that is tailored to the specific needs and motivations of each teenager.
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