To provide a medical cap having an elastic stopper and an outer frame body for holding the elastic stopper therein, and having no liquid leakage at the time of needle stick, and having an excellent holding force against needle pull-out, and a method for producing the same.SOLUTION: The present invention is a medical cap 10 which includes an elastic stopper 2, and an outer frame body 1 including at least an upper frame part 11 for supporting a peripheral edge part 26 of the elastic stopper 2 from an upper surface side and a lower frame part 12 for supporting the peripheral edge part 26 from a lower surface side. The lower frame part 12 has a flange part 12c protruding to the outside of the outer frame body 1, and a pressing part 12b for pressing the lower surface side of the peripheral edge part 26 of the elastic stopper 2, and a plurality of gate marks are formed on an outer surface of the pressing part 12b.SELECTED DRAWING: Figure 1【課題】弾性栓体と、当該弾性栓体を内部で保持する外枠体とを有する医療用キャップであって、針刺しの際の液漏れがなく、かつ針抜けに対する保持力に優れた医療用キャップ及びその製造方法を提供する。【解決手段】本発明は、弾性栓体2と、前記弾性栓体2の周縁部26を上面側から支持する上側枠部11及び下面側から支持する下側枠部12を少なくとも備えた外枠体1とを備える医療用キャップ10であって、前記下側枠部12は、前記外枠体1の外側に突出するフランジ部12cと、前記弾性栓体2の周縁部26の下面側を押圧する押圧部12bとを有し、前記押圧部12bの外側面には、複数のゲート痕が形成されている。【選択図】 図1