In order to provide an endoscope that ensures good operability and maintains miniaturization and contributes to reduction in manufacturing cost, the endoscope of the present invention is provided with an insertion portion 2, a bendable curved portion 7 , A pulling member 35 which moves inside the insertion portion to bend the bending portion, an operating portion which is connected to the proximal end portion of the insertion portion and which manipulates the movement of the pulling member and which is provided with respect to a central axis extending in the longitudinal direction An operation section 3 having a first operation section forming one side of the operation section and a second operation section forming the other side with respect to the central axis in the central axis direction and shorter than the first operation section, A towing member adjustment unit 50 disposed on the first operation unit side and the second operation unit side to adjust the movement range of the towing member, a tow member adjustment unit that fixes the tow member adjustment unit in the first operation unit, A first fixing member 52a arranged on the second operating part, a towing member adjusting part fixed in the second operating part, And a second fixing member 52a having the same shape as the fixing member and formed separately from the first fixing member and arranged asymmetrically with respect to the central axis with respect to the first fixing member on the side of the second operating portion in the operating portion To provide良好な操作性を確保し小型化を維持し製造コストの低減化に寄与し得る内視鏡を提供するために、本発明の内視鏡は、挿入部2に設けられ湾曲可能な湾曲部7と、湾曲部を湾曲させるために挿入部内を移動する牽引部材35と、挿入部の基端部に接続され牽引部材の移動を操作する操作部でありその長手方向に延出する中心軸に対し操作部の一方側を形成する第1操作部及び中心軸に対しその他方側を形成し中心軸方向で第1操作部よりも短く形成される第2操作部を有する操作部3と、操作部内で第1操作部側及び第2操作部側に配置され牽引部材の移動範囲を調整する牽引部材調整部50と、牽引部材調整部を第1操作部内に固定し操作部内の第1操作部側に配置される第1固定部材52aと、牽引部材調整部を第2操作部内に固定し第1固定部材と同一形状を有し第1固定部材とは別体に形成され操作部内の第2操作部側で中心軸に対し第1固定部材とは非対称に配置される第2固定部材52aとを具備する。
