IntroductionBernard-Soulier syndrome (BSS), or hemorrhagiparous thrombocytic dystrophy, is a rare autosomal recessive bleeding disorder caused by genetic mutations affecting the platelet glycoprotein Ib-IX-V complex [1]. This defect impairs platelet adhesion to von Willebrand factor at sites of vascular injury, leading to a severe coagulopathy characterized by prolonged bleeding time, macrothrombocytopenia, and giant platelets on peripheral smear [1]. Clinical manifestations typically include epistaxis, gingival bleeding, and menorrhagia [1]. Due to the presence of thrombocytopenia, BSS is often misdiagnosed as immune thrombocytopenic purpura (ITP), but it is critically distinguished by its lack of response to corticosteroids and the presence of abnormally large platelets [2].While mucocutaneous bleeding is common, hemoptysis is a rare and alarming presentation in BSS, signaling severe underlying pathology [3]. The literature on pulmonary hemorrhage in BSS is sparse and points to two primary etiologies. The first is bleeding secondary to underlying structural lung disease; for instance, a 14-year-old female with BSS was reported to have hemoptysis in the setting of active pulmonary tuberculosis [4]. The second, rarer scenario is hemorrhage intrinsic to the coagulopathy itself, as described in a 46-year-old male who developed diffuse alveolar hemorrhage [3]. Therefore, in a BSS patient presenting with hemoptysis, it is critical to aggressively investigate for an underlying pulmonary trigger.Here, we report the complex case of a 19-year-old male with BSS who presented with life-threatening hemoptysis and a platelet count of 5.59 x 10⁹/L. His presentation was uniquely challenging due to a convergence of three pathologies: the severe intrinsic bleeding risk from BSS, a destructive pulmonary lesion from active tuberculosis for which he was undergoing treatment, and a subsequent fungal superinfection within a tuberculous cavity, confirmed by microbiologic and radiologic findings. The coexistence of this clinical triad—an inherited bleeding disorder complicated by concurrent mycobacterial and fungal infections—created a perfect storm for refractory hemorrhage and presented a profound management dilemma. This report details the successful multidisciplinary strategies used to secure hemostasis and highlights the diagnostic and therapeutic challenges of managing such a rare and complex clinical scenario.