INTRODUCTION: Diaphragmatic rupture is an uncommon trauma complication and it is associated with chronic diaphragmatic herniation, especially in the left side . Chronic diaphragmatic herniation is usually due to white weapon injury and as consequence of low suspicious and absence of proper investigation . CASE REPORT: We report a chronic diaphragmatic herniation after three years of a stab in the left thoracoabdominal transition, managed through laparotomy .

DISCUSSION: Traumatic diaphragmatic rupture is a rare trauma consequence, most common in the left side . The herniation occurs gradually because of negative pressure of the thoracic cavity that works as a suction of the abdominal organs .

CONCLUSION: Traumatic diaphragmatic ruptures diagnosis is difficult and might go unnoticed without high suspicious and proper investigation . Chronic herniation is associated with higher morbimortality.