An endoscope includes: an insertion portion； a bending portion provided in the insertion portion； an operation portion connected to the insertion portion； a grasp-assistance portion provided on the operation portion, a bending operation knob provided on one side face of the operation portion and rotating centering on a rotation axis； a plurality of function switches that are provided on a face different from the one side face, and each upper-side side face protrudes further than an outermost diametrical path of the bending operation knob； and a switch root portion constituting a root portion of a function switch disposed at a position on the distal-most end side among the plurality of function switches, and disposed further on the proximal end side than an intersection point on the distal end side among two intersection points at which the outermost diametrical path and a switch-disposing face intersect.
