PROBLEM TO BE SOLVED: To provide a medical waste container that hardly causes an operation mistake to occur, and to provide a disposal system.SOLUTION: A recess part 50 of a medical waste container includes: a central hole part 51 arranged in an axis line S extending in a depth direction 3 to 10 radial holes 52 extending in a radial direction from the central hole part 51, and is configured into a gear-like so that the recess part 50 is fitted to a needle case having a plane section with a gear shape.SELECTED DRAWING: Figure 9COPYRIGHT: (C)2019,JPO&INPIT【課題】操作ミスが生じにくい医療廃棄物用の容器および廃棄システムを提供することである。【解決手段】医療廃棄物用の容器の凹部50は深さ方向に延びる軸線Sに配置された中心孔部51と、中心孔部51から放射方向に延びる3~10個の放射孔部52とを有し、歯車形状の平面断面を有する針ケースに凹部50が嵌合するように歯車状に構成されていることを特徴とする。【選択図】図9