A case of spontaneous intercostal pulmonary hernia as a result of vigorous coughing is reported in a 67-year-old man. The great majority of acquired pulmonary hernias are post-traumatic; rare cases are spontaneous, resulting from prolonged and/or repeated increased intrathoracic pressure. This hernia was successfully repaired with a polyglactin absorbable mesh and approximation of the ribs with heavy stitches. When required, surgical repair is the treatment of choice.