An endoscope includes: an insertion portion configured to be inserted into a subject a plate-like member provided on a proximal end side of the insertion portion, the plate-like member allowing a mechanism component for operating the insertion portion to be arranged on the plate-like member, the plate-like member having a predetermined thickness dimension an attachment portion formed by flexing an end portion of the plate-like member in a predetermined direction and a fixing portion configured to fix at least part of another member within a range of the thickness of the plate-like member, the fixing portion being formed inside the attachment portion.
