The endoscope has an insertion portion, an operation portion attached to the proximal end portion of the insertion portion, and a shaft shape that is inserted into the insertion portion and extends to the operation portion, and can be advanced and retracted relative to the insertion portion. A member and a projectable portion provided at the distal end portion of the insertion portion, the projectable portion is provided in a state where the distal end is exposed to the outside, a fixing portion that is watertightly attached to the outer surface of the insertion portion, A moving part that can move in a direction crossing the outer surface as the shaft-like member advances and retreats, and a connecting part that is elastically deformable and connects the fixed part and the moving part in a watertight manner.本内視鏡は、挿入部と、挿入部の基端部に取付けられた操作部と、挿入部内に挿通されるとともに基端部が操作部まで延び、挿入部に対して進退可能な軸状部材と、挿入部の先端部に設けられた突出可能部と、を備え、突出可能部は、挿入部の外面に水密に取付けられた固定部と、先端が外部に露出した状態に設けられ、軸状部材が進退することで外面に交差する方向に移動可能な移動部と、弾性的に変形可能であって固定部と移動部とを水密に連結する連結部と、を有する。
