RESUMEN
BACKGROUND: Short bowel syndrome (SBS) refers to a malabsorptive state caused by extensive resection of the intestinal tract that leads to chronic diarrhea, electrolyte disturbances, and malnutrition. Although relatively uncommon, patients with SBS can present to the emergency department with more serious complications that are potentially life-threatening. Among these complications, coagulopathy secondary to SBS is an underrecognized condition. CASE REPORT: We present a case of severe coagulopathy secondary to vitamin K deficiency in SBS. The patient presented with unexplained coagulopathy and spontaneous bleeding in multiple organs. With a review of surgical history and detailed clinical evaluation, SBS complicated with vitamin K deficiency was diagnosed, and the patient was treated successfully. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: When a patient with a history of repeated intestinal surgery presents with diarrhea, malnutrition, or electrolyte abnormalities, emergency physicians should suspect SBS. Among complications of SBS, vitamin K deficiency is a rare but serious cause of unexplained coagulopathy presenting to the emergency department. Understanding the pathophysiology of SBS facilitates early identification of complications and improves patient outcomes.