A 73-year-old male was referred to our hospital because of right lower abdominal pain and nausea. Abdominal X-ray and CT examination revealed air fluid level and bowel dilatation. Conservative therapy was started with a long decompression tube insertion. However, no symptomatic remission was attained. On abdominal CT scan performed on the 3rd hospital day, severe bowel dilatation was observed. Therefore, an emergent laparotomy was performed on that day. The small intestine was trapped into a hole which was created by the adhesive omentum to the prosthesis, shaped with the omentum placed into the right lower abdominal preperitoneal space. This prosthesis was a Kugel patch inserted 2 years before this operation. The prosthesis which had involved the testicular artery and vein and ductus deferens was removed, then hernioplasty was done with pre-shaped porypropylen mesh (Bard 3D Max mesh). Recently, in the abdominal wall reinforcement, various types of prostheses have been frequently used, and several complications concerning these prostheses have been reported. Only one previous case of incarceration of the bowel after the use of Kugel has been reported in the Japanese literature. We have to consider postoperative complications like in this case.