Borderline personality disorder (BPD) is associated with pervasive stigma that contributes to several consequences, such as inaccessible and inadequate healthcare. Existing literature concerning the experiences of BPD stigma within healthcare settings predominantly centers on mental healthcare contexts. However, individuals with BPD also present with elevated physical disabilities and health concerns, demonstrating a need for regular contact with medical professionals to manage and coordinate physical healthcare. The current qualitative study analyzes the dynamics of stigma and consequences in medical settings for physical healthcare among individuals diagnosed with BPD. Community adults (N = 16, Mage = 29.50, 44% cisgender women) provided qualitative responses describing their experiences with stigma in medical settings other than for mental health purposes. The inductive thematic analysis generated six key themes: (1) Dismissal and Misattribution of Physical Symptoms, (2) Delayed or Inappropriate Medical Diagnosis and Intervention, (3) Communication and Advocacy Challenges, (4) Invalidation of Emotional Well‐Being and Distress, (5) Self‐Harm Stigma, and (6) Presumed Drug‐Seeking Behavior. This article demonstrates the persistent and complex role of stigma across physical healthcare settings for individuals with BPD, affecting their physical and mental healthcare outcomes. It also identifies areas for future research and improvement and offers insights to ameliorate these issues.