An endoscope includes an insertion portion to be inserted into a subject, and is capable of allowing a treatment tool to protrude from a distal end of an insertion portion, the endoscope being characterized in that the rotation axis A treatment instrument elevator elevating with respect to a direction in which the insertion section extends due to rotation about the rotation axis, and a treatment instrument elevation table disposed on the proximal end side of the insertion section, A wire disposed along a direction in which the insertion portion is extended and connected to the operation portion, and a wire connection portion connected to the wire, the operation To the treatment instrument elevator base, and the wire connection portion is opposed to the reference surface including the direction in which the insertion portion extends and the direction along the axial center of the rotation shaft, with respect to the side on which the treatment instrument rises And an operation transmission mechanism located on the side of the operation mechanism. Thereby, it is possible to provide an endoscope capable of improving cleaning efficiency without increasing the size of the distal end portion of the endoscope and without deteriorating the operation feeling of the user.内視鏡は、被検体内に挿入される挿入部を備え、挿入部の先端から処置具を突出させることが可能な内視鏡であって、挿入部の先端部に配設された回転軸に支持され、回転軸を中心とする回転により挿入部が伸びる方向に対して起上する処置具起上台と、挿入部の基端側に配設され、処置具起上台に対し、処置具を起上させる角度を変更する操作を入力する操作部と、操作部と接続されるとともに挿入部が伸びる方向に沿って配設されたワイヤと、ワイヤと接続されるワイヤ接続部を有し、操作を処置具起上台に伝達する機構であって、ワイヤ接続部は、挿入部が伸びる方向と回転軸の軸心に沿った方向とを含む基準面に対して処置具が起上する側と反対側に位置する操作伝達機構と、を備える。これにより、内視鏡の先端部を大型化させず、かつ使用者の操作感を劣化させずに、洗浄効率を向上させることができる内視鏡を提供する。
