Importance

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Abstract

An endoscope includes: an observation window disposed in a distal end portion of an insertion portion; a nozzle disposed in the distal end portion; and a cover configured to cover the distal end portion, a distal end surface of the cover includes: a first surface surrounding the observation window, the first surface having a first planar shape when viewed in a cross-section taken about a line connecting the observation window and the nozzle; a second surface disposed radially outside the first surface, the second surface having a curved shape when viewed in the cross-section; and a third surface disposed radially outside of the second surface, the third surface having a second planar shape.

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First Claim