PROBLEM TO BE SOLVED: To prevent a bond, that is, an adhesion, which occurs between a wound part and its surrounding tissue or an organ which is originally separated. SOLUTION: The adhesion-inhibiting material of the present invention is characterized in that at least a part thereof is made of a non-biodegradable material, and the contact angle of water on the surface is 7 degrees or less, or 90 degrees or more. [Selection diagram] Figure 1【課題】創傷部とその周囲組織との間、或いは本来は分離している臓器間に生じる結合すなわち癒着を阻止すること。【解決手段】本発明の癒着阻止材は、少なくとも一部が生体内非分解性材からなり、表面の水に対する接触角が7度以下、又は90度以上である事を特徴とする。【選択図】図1