An incisional hernia may have unusual contents, that may require careful evaluation to prevent complications. We present here a case of asymptomatic gallbladder herniation within a midline incisional hernia. Despite the distance between the defect and the organ, a hernia sac may have unusual contents. In this case that we present, after assuming the condition to be a simple incisional hernia, we did not perform any preoperative radiological work-up. But, in more complex conditions, such as a strangulation, careful evaluation with imaging techniques may avoid complications.