Provided is an endoscope sheath including: a sheath body having an elongated rotating section and a stationary section, which are coupled to each other in a relatively rotatable manner about a longitudinal axis a first passage along the axis a second passage parallel to the first passage an outlet through which a proximal end of an injection needle inserted in the second passage is pulled outside, the outlet being capable of changing a pullout position of the proximal end of the needle relative to the stationary section in the circumferential direction and holders provided in the stationary section and separated by intervals in the circumferential direction, each holder securing an injector having the needle to the stationary section at a position where the needle protrudes from the distal end of the body and releasing the injector at a position where the needle is accommodated inside the body.
