PROBLEM TO BE SOLVED: To provide an endoscope configured to improve progression of a tip end of an insertion part by eliminating torsional torque applied to the insertion part having a holder on the tip end side thereof to reduce friction between an inner wall of an inspection target and the holder.SOLUTION: An endoscope includes: an insertion part 5 having an observation part 8 on a tip end side thereof； a bendable part 3 provided on a base end side of the observation part 8 within the tip end side of the insertion part 5 and designed to be bendable in multiple directions； and a holder 50 disposed around an outer periphery of the insertion part 5 at a fixed position on the base end side of the bendable part 3 in a longitudinal direction N of the insertion part 5 and configured such that at least a portion thereof to be in contact with an inner wall of an inspection target is rotatable in a direction R about a longitudinal axis of the insertion part 5.SELECTED DRAWING: Figure 1【課題】先端側に保持具が設けられた挿入部に付与される捩りトルクを解消することにより、被検体の内壁と保持具との摩擦を低減させて挿入部の先端側の進行性を向上させることができる構成を具備する内視鏡を提供する。【解決手段】先端側に観察部８を有する挿入部５と、挿入部５の先端側において観察部８よりも基端側に設けられた複数方向に湾曲自在な湾曲部３と、挿入部５の外周に対し、湾曲部３よりも基端側に挿入部５の長手軸方向Ｎの位置が固定されかつ挿入部５の長手軸周り方向Ｒに少なくとも被検体の内壁に当接する部位が回動自在な保持具５０と、を具備する。【選択図】図１
