An endoscope includes a rigid distal end portion provided in a distal end portion of an insertion section and configured by a flex, and an elastic cylindrical portion provided on a proximal end side of the rigid distal end portion of the insertion section. The elastic cylindrical portion does not bend according to an bending operation by an operation section, has a rigidity to bending higher than a rigidity to bending of a bending portion and lower than a rigidity to bending of a flexible tube portion, has a length that is equal to or longer than the bending portion along an axial direction of the insertion section, and is configured by a tightly wound coil that is not compressed in the axial direction of the insertion section.
