© The Author(s) 2021.Lung herniation, where the lung and its visceral and parietal components protrude outwards from a defect in the chest wall, is not common. It is most commonly secondary to blunt or penetrating trauma. The diagnosis is difficult, as the presentation differs according to aetiology. Ultrasound or CT scanning help in diagnosis and treatment planning. We present a 70-year-old female patient with lung herniation following a cow's kick on the thorax.