A grip portion (10) for realizing a medical hook capable of securing visibility around the surgical field while realizing a hook that is reduced in weight as compared with a conventional steel hook, and a grip portion And a resin function part (20) extending from the grip part, wherein the resin function part includes a trunk part (30) having a proximal end connected to the grip part, a hook extending from a tip of the trunk part And a hooked portion (40) formed on the front surface of the hook portion, wherein the resin function portion is configured so that an affected portion opposed to the abdominal surface can be seen through from the back side.従来の鋼製の鈎に比べて軽量化した鈎を実現しつつ、術野周辺の視認性を確保することが可能な医療用鈎を実現する把持部(10)と、透明樹脂で形成され前記把持部から延設された樹脂機能部(20)と、を備え、前記樹脂機能部は、前記把持部に基端を接続された幹部(30)と、前記幹部の先端から鈎状に延設された鈎状部(40)とを有し、前記樹脂機能部は、その腹面に対向する患部を背面側から透視可能に構成されていることを特徴とする医療用鈎。