The purpose of this qualitative case study was to explore how therapists build therapeutic alliances with their clients in trauma-based therapy using self-disclosure in the southern United States. The field of psychology benefitted significantly from a clearly defined and operationalized study that focused on the specific forms and usage of self-disclosure within the trauma-based therapeutic alliance, which advances the current research and uncovers the understanding of this potentially helpful intervention. The researcher used a case study approach and collected data using a semi-structured interview approach. These interviews were then examined using coding and the NVivo software. Theoretical coding was utilized to recognize and develop categories and patterns that emerged during the selective coding process. Relationships between the codes or themes were identified throughout the emerging theory or phenomenon. The results of the study include patients feeling less judged and more connected to the therapists that used self-disclosure as a connection tool.