This endoscope comprises: an insertion part； an operation part that is connected to a base end side of the insertion part； a wire that is inserted into the insertion part； a pulling mechanism part that is disposed in the operation part and that pulls and relaxes the wire； a first bending section that constitutes a portion of the insertion part, and that bends actively in accordance with pulling of the wire； a second bending section that constitutes a portion of the insertion part, that is disposed more toward the base end side than the first bending section, that bends passively in accordance with an external force, and that expands/contracts in a direction along the longitudinal axis of the insertion part； a longitudinal member that is inserted into the insertion part and the operation part, and that maintains a distance along the longitudinal axis of the insertion part from the operation part to the first bending section； and a flexible tube section that constitutes a portion of the insertion part, that is disposed more toward the base end side than the second bending section, that is provided so as to be movable in a direction along the longitudinal axis relative to the operation part, the wire, and the longitudinal member, and that expands/contracts the second bending section by moving in a direction along the longitudinal axis relative to the operation section.L'invention concerne un endoscope comprenant : une partie insertion ； une partie actionnement qui est reliée à un côté extrémité de base de la partie insertion ； un fil qui est inséré dans la partie insertion ； une partie mécanisme de traction qui est disposée dans la partie actionnement et qui tire et relâche le fil ； une première section de courbure qui constitue une partie de la partie insertion, et qui se plie activement en fonction de la traction du fil ； une seconde section de courbure qui constitue une partie de la partie insertion, qui est disposée plus vers le côté extrémité de base que la premiè
