Art therapy in trauma processing is based on the fact that traumatic experiences are not always stored and reread in the mind in the form of a coherent verbal narrative and sometimes remain in the form of mental images, bodily sensations, intense emotions, scattered memories, and non-verbal reactions. By providing a safe and structured environment, art therapy provides the possibility of gradual approaching of these experiences without the need for direct and immediate retelling. In this process, the individual can symbolically represent the traumatic experience through painting, drawing, collage, sculpture, music, or other artistic media, creating a manageable distance between the inner experience and the external world. One of the theoretical foundations of this approach is the externalization of the traumatic experience, i.e., content that is scattered at the mental, emotional, or physical level, is organized into a visible product, and the individual can observe, describe, and discuss it. This process can help increase self-awareness and identify the relationship between trauma stimuli, thoughts, emotions, and behavioral reactions. From an emotion regulation perspective, artistic activity may help reduce emotional arousal, increase feelings of control, and create opportunities to experience emotion within a tolerable range. In trauma-based interventions, the important principle is that exposure to traumatic content should be gradual, controlled, and proportional to the individual's capacity, so art therapy should not become forced reconstruction or direct elaboration about the event. Existing research evidence suggests that some art interventions can play a complementary role in reducing distress, anxiety, trauma-related symptoms, and emotional problems, although the quality and amount of evidence varies across methods and groups. The importance of art therapy in this area is especially heightened when a person has difficulty verbally expressing their experience or feels that words are not capable of fully conveying the experience. The work of art can act as a communication medium between the client and the therapist, increasing the possibility of a gradual conversation about difficult experiences. Reconstructing a traumatic experience in art therapy does not necessarily mean changing the reality of the past, but it can aim to change the way a person relates to the memory, excitement, and meaning attributed to the event. In this process, the individual can move from a merely threat-oriented representation to narratives that also include elements of survival, resistance, sources of support, identity, and hope. The use of techniques such as safe imagery, the construction of personal symbols, representation before and after the incident, collage of supportive resources, and the creation of images related to the future can help to strengthen the sense of agency in the appropriate therapeutic framework. Art therapy can also make it possible to pay attention to physical reactions associated with trauma, as many people experience breathing changes, muscle tension, and physiological arousal in addition to thoughts and memories. Focusing on the mood process, movement rhythm, material selection, and sensory experience can help create pause and return attention to the present. In children and adolescents, artistic media, due to their non-verbal and flexible nature, can be a suitable tool for observing and expressing certain emotional experiences, but the interpretation of their works should be done without assumptions and according to the child's own narrative. In survivors of complex trauma, art can also help to strengthen identity, psychological boundaries, and experience safe communication. However, one of the main challenges is the possibility of memories being reactivated and intense arousal when dealing with traumatic content, so the implementation of the intervention requires initial assessment, creating a sense of security, adjusting the intensity of the activity, and specialized supervision. Another limitation is the heterogeneity of art therapy methods and differences in the type of media, duration of the intervention, sample characteristics, and assessment tools in the existing research, which make it difficult to compare the results. It is suggested that future research more closely investigate the mechanisms of the effectiveness of art therapy using controlled trials, larger samples, longitudinal assessments, and standard tools related to PTSD, emotion regulation, and quality of life. It is also necessary to develop trauma-centered protocols, specialized training of therapists, and simultaneously pay attention to psychological safety, emotion regulation, and support resources. Overall, art therapy can be used as an intervention Supplementation should be used in trauma processing and contribute to the process of psychological adjustment by externalizing the experience, facilitating emotional expression, increasing distance from traumatic memories, strengthening the sense of agency, and reconstructing the meaning of the experience, however, its therapeutic use should be evidence-based, proportional to the individual's capacity, and under the guidance of a trained professional.