Autosomal dominant polycystic kidney disease is associated with multiple cysts in various organs including the kidney, liver, pancreas, and spleen. Increased intraabdominal pressure due to such condition causes adult umbilical hernia and inguinal hernias. We have a great deal of difficulty in the treatment. We repaired two recurrent adult umbilical hernias and one incarcerated adult umbilical hernia associated with polycystic kidney disease by using a prosthetic material. Prolene^® hernia system, which is devised for inguinal hernia repair, has three attached components. Its underlay patch provides a posterior abdominal wall repair. Its connector, which is depressed in the center, has the desirable attributes of a plug repair. Its onlay patch covers the anterior abdominal wall and prevents a hernia of the linea alba. There have been no signs of recurrence in all patients and the umbilical dimple which has been intact gives them satisfaction.