<p>Diaphragmatic hernia occurs when the continuity of the diaphragm is altered, thus allowing the abdominal organs to migrate into the thoracic cavity. Diaphragmatic hernia can be generated by two (2) causes: The first is due to trauma and the second is congenital peritoneopericardial. The most frequent causes of this pathology are automobile accidents, falls, blows and fights. We report a female canine named Coral, mestizo, 5 months old, weighing 8.8kg, from the municipality of Motavita, Boyacá. The reason for consultation was (dyspnea) with a duration of 10 days, the guardian reports that the pet was possibly run over, the day she began to notice the respiratory distress took her to another veterinary medical center where she was given analgesic and oxygen, they did not see any improvement and decided to change medical center. The patient underwent a chest x-ray, where the hernia was evidenced and it was decided to go to the operating room. The only treatment for diaphragmatic hernia is surgery because as time goes by it can cause obstruction, strangulation and adhesions of the abdominal viscera, pleural effusions, pulmonary compression and finally cause the death of the canine or feline.</p>