We report two cases of surgically proven supravesical hernia, one an intern
al supravesical hernia and the other an external supravesical hernia. Abdom
inal computed tomography showed the relation of the incarcerated intestine
anterior to and compressing the urinary bladder. Although neither case was
diagnosable preoperatively, we believe that the preoperative diagnosis of s
upravesical hernia by abdominal computed tomography is possible.