PROBLEM TO BE SOLVED: To provide an endoscope in which surroundings of an erecting stand of the endoscope can be washed surely.SOLUTION: An endoscope comprises at least: an insertion part having a distal end and a proximal end； a distal end part body which is provided on a distal end side of the insertion part； and an ultrasonic transducer which is provided on a distal end side of the distal end part body. The distal end part body comprises: a treatment tool outlet； an erecting stand which is arranged on the treatment tool outlet, and is turned between a raised position and a laid position； a pair of walls having facing wall surfaces forming a space for storing the erecting stand, respectively； an observation window which is connected to the wall face of one wall out of the pair of walls, and is arranged on a plane which is inclined with respect to an axial direction of the distal end part body； a nozzle which is arranged on a side opposite to the space with the observation window in-between, and on a plane, and jets washing water to the observation window； and a fluid conduit connected to the nozzle. The wall surface of the other wall out of the pair of walls is positioned on an extension of a jetting direction of the washing water jetted from the nozzle.SELECTED DRAWING: Figure 3【課題】内視鏡の起立台の周囲を確実に洗浄することができる内視鏡を提供する。【解決手段】内視鏡は、先端と基端とを有する挿入部と、挿入部の先端側に設けられる先端部本体と、先端部本体の先端側に設けられた超音波振動子と、を少なくとも備え、先端部本体が、処置具出口と、処置具出口に配置され、起立位置と倒伏位置との間を回動する起立台と、起立台を収容する空間を形成する対向する壁面をそれぞれ有する一対の壁と、一対の壁の一方の壁の壁面に連接し、先端部本体の軸線方向に対して傾斜する平面に配置された観察窓と、観察窓を挟んで空間と反対側で、かつ平面に設けられ、観察窓に洗浄水を噴射するノズルと、ノズルに接続される流体管路と、を有し、ノズルから噴射される洗浄水の噴射方向の延長上に一対の壁の他方の壁の壁面を位置させている。【選択図】図３
