A manipulator (1) including an elongated shaft (3), a distal-end treatment section (5) disposed at a distal end of the shaft (3), a distal-end articulated section (4) having a bendable joint and a rotatable joint, and a proximal-end operating section (6) disposed at a proximal end side of the shaft (3), wherein the bendable joint has an axis intersecting a longitudinal axis of the shaft (3), the rotatable joint has an axis that intersects the axis of the bendable joint and that is substantially aligned with a central axis of the distal-end treatment section (5), the proximal-end operating section (6) includes a first operating section (9) gripped by one hand and causing the bendable joint to move about the axis intersecting the longitudinal axis of the shaft (3), and also includes a second operating section provided in the first operating section (9) and causing the rotatable joint to move.
