Pilot Study on Auricular Acupuncture in Hospitalized Adults With Borderline Personality Disorder

The goal of this pilot study is to evaluate the feasibility and preliminary effectiveness of a brief auricular acupuncture program delivered by mental health nurses as a complementary therapy for adults hospitalized with borderline personality disorder (BPD). The main questions it aims to answer are: * Is participation in the five-session auricular acupuncture program feasible (in terms of attendance) for hospitalized adults with borderline personality disorder? * Does the auricular acupuncture intervention show potential benefits on emotional regulation, anxiety, sleep quality, and overall clinical status? 15 hospitalized adults with BPD will receive 5 individual ear acupuncture sessions, over a 9-day period, based on the National Acupuncture Detoxification Association (N.A.D.A.) protocol in addition to treatment as usual. Participants will complete brief questionnaires at several time points. The findings will inform the feasibility of the study procedures and guide the development of a future larger-scale clinical trial.