PROBLEM TO BE SOLVED: To provide a medical needle which stores surely, a needle tip in a case, and reduces discomfort felt by a user.SOLUTION: A medical needle 1 comprises: a needle part 10 having a needle tip 14 on a tip; a case 30 from whose tip part, the needle part 10 can be exposed, and which can store the needle part 10; a movement mechanism 50 having a spring 60 for moving the needle part 10 in the case 30 from a first position where the needle tip 14 protrudes by a prescribed length from the case 30, to a second position where the needle tip 14 is stored in the case 30; and a curve part 90 provided on a facing part facing the case 30 on the movement mechanism 50.SELECTED DRAWING: Figure 4COPYRIGHT: (C)2019,JPO&INPIT【課題】針先をケース内に確実に収容しつつ、使用者の不快感を軽減した医療用針を提供する。【解決手段】医療用針1は、先端に針先14を有する針部10と、先端から針部10を露出可能で、かつ、針部10を収容可能に構成されたケース30と、ケース30から針先14が所定の長さ突出する第1位置から、ケース30内に針先14が収容される第2位置まで、ケース30内で針部10を移動させるバネ60を有する移動機構50と、移動機構50におけるケース30との対向部に設けられた湾曲部90とを備える。【選択図】図4