Catamenial Pneumothorax (CP) is a rare type of Spontaneous Pneumothorax (SP) that affects women, especially those of reporductive age. CP is characterized by thoracic endometrial lesions and diaphragmatic fenestrations leading to pneumothorax and is often in close relationship to a woman's menses. We demonstrate the laproscopic removal of an endometrial lesion in the diaphragm along with the repair of diaphragmatic fenestrations.