PROBLEM TO BE SOLVED: To provide an antiadhesive material which is excellent in handleability and excellent in a cell adhesion suppression effect and strength against suture.SOLUTION: A silk fibroin porous body is used for the antiadhesive material. The porous body has a porous layer and a film layer not provided with pores only on one surface of the porous layer.COPYRIGHT: (C)2012,JPO&INPIT【課題】取扱性に優れ、細胞接着抑制効果及び縫合に対する強度に優れる癒着防止材を提供する。【解決手段】シルクフィブロイン多孔質体を用いた癒着防止材である。【選択図】なし