An endoscope including: a tubular flexible member which has elasticity and configures an outermost layer of a bending portion a bending portion fixing rigid portion at which an end portion of the tubular flexible member is arranged and a bending portion end fixing portion for fixing the end portion of the tubular flexible member arranged at the bending portion fixing rigid portion, in which the bending portion includes, at an end portion in a longitudinal axis thereof, a bending portion end small-diameter portion, an outer diameter dimension of which is set to be small, and an outer diameter of a covering portion which configures the bending portion end fixing portion is smaller than an outer diameter of a bending portion fixing rigid portion-side end portion and an outer diameter of an end portion of a middle tube portion of the tubular flexible member, the bending portion fixing rigid portion-side end portion and the end portion of the middle tube portion being arranged so as to be opposed to each other across the bending portion end small-diameter portion.
