PROBLEM TO BE SOLVED: To provide a urethral insertion tool in which manipulation to embed an indwelling object for supporting a biological tissue in the living body can be safely performed.SOLUTION: A urethral insertion tool 4 comprises: a long urethral insertion part 41 which is inserted into a urethra a suction hole 44 which is arranged in the urethral insertion part 41 and a slide resistance amplifier 49 which is arranged in the urethra insertion part 41, and contacts with tissues in the urethra, thereby increasing slide resistance of the urethral insertion part 41 against the urethra. The slide resistance amplifier 49 includes convexoconcaves formed on a surface of the urethral insertion part 41.COPYRIGHT: (C)2015,JPO&INPIT【課題】生体組織支持用留置物を容易に生体内に埋設する手技を安全に行うことのできる尿道挿入具を提供すること。【解決手段】尿道挿入具4は、尿道内に挿入される長尺な尿道挿入部41と、尿道挿入部41に設けられた吸引孔44と、尿道挿入部41に設けられ、尿道内の組織と当接することで、尿道に対する尿道挿入部41の摺動抵抗を高める摺動抵抗増幅部49とを有している。また、摺動抵抗増幅部49は、尿道挿入部41の表面に形成された凹凸を有している。【選択図】図12