This paper explores the profound impact of trauma on Catherine Earnshaw in Emily Brontë’s Wuthering Heights, specifically focusing on how her experiences of abuse and abandonment contribute to symptoms of Borderline Personality Disorder (BPD). The research situates Catherine’s psychological struggles within the broader context of Trauma Studies, utilizing theories of Post-Traumatic Stress Disorder (PTSD) to interpret her behaviors and relationships. The study examines the interplay between Catherine’s unresolved trauma and her conflicted relationships, highlighting how these dynamics shape her tragic fate and influence other characters in the novel. The analysis underscores the significance of understanding trauma's psychological effects in literature, offering insights into the complexities of character development and the broader implications for human behavior.