Endoscope

An endoscope comprising:

• an insertion part including a distal end part and a bendable part provided on a proximal end side of the distal end part;
• and
• a bending operation part capable of performing a bending operation on the bendable part,
• wherein the bendable part includes a first region and a second region between the first region and the distal end part,
• the first region is bent in one direction with a first curvature radius in accordance with an operation of the bending operation part,
• the second region is bent in the one direction with a second curvature radius less than the first curvature radius in accordance with an operation of the bending operation part, and
• an end part of the second region on a side of the distal end part is configured not to be subjected to the bending operation by the bending operation part.

An endoscope comprising:

• an insertion part including a distal end part and a bendable part provided on a proximal end side of the distal end part;
• and
• a bending operation part capable of performing a bending operation on the bendable part,
• wherein the bendable part includes a first region and a second region between the first region and the distal end part,
• the first region is bent in one direction with a first curvature radius in accordance with an operation of the bending operation part,
• the second region is bent in the one direction with a second curvature radius less than the first curvature radius in accordance with an operation of the bending operation part,
• the bendable part is bendable in the one direction by a bending angle of at least 180° in accordance with an operation of the bending operation part, and
• in a case where the bendable part is bent by 180° in the one direction, a distal end surface of the distal end part is positioned on a distal end side relative to a proximal end edge of the first region.